Commit graph

18,226 commits

Author SHA1 Message Date
Thinh Nguyen
f2216e3e1d usb: dwc3: Fix GDBGFIFOSPACE_TYPE values
commit b16ea8b949 upstream.

The FIFO/Queue type values are incorrect. Correct them according to
DWC_usb3 programming guide section 1.2.27 (or DWC_usb31 section 1.2.25).

Additionally, this patch includes ProtocolStatusQ and AuxEventQ types.

Fixes: cf6d867d3b ("usb: dwc3: core: add fifo space helper")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-21 12:06:45 +01:00
Wei Yongjun
3914aae2ae USB: gadget: udc: Add missing platform_device_put() on error in bdc_pci_probe()
commit 8874ae5f15 upstream.

Add the missing platform_device_put() before return from bdc_pci_probe()
in the platform_device_add_resources() error handling case.

Fixes: efed421a94 ("usb: gadget: Add UDC driver for Broadcom USB3.0 device controller IP BDC")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-21 12:06:45 +01:00
Johan Hovold
872181a79b USB: ledtrig-usbport: fix of-node leak
[ Upstream commit 03310a1548 ]

This code looks up a USB device node from a given parent USB device but
never dropped its reference to the returned node.

As only the address of the node is used for a later matching, the
reference can be dropped immediately.

Note that this trigger implementation confuses the description of the
USB device connected to a port with the port itself (which does not have
a device-tree representation).

Fixes: 4f04c210d0 ("usb: core: read USB ports from DT in the usbport LED trigger driver")
Cc: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:48 +01:00
Roger Quadros
e52fb772cb usb: dwc3: Fix lock-up on ID change during system suspend/resume
commit 084a804e01 upstream.

To reproduce the lock up do the following
- connect otg host adapter and a USB device to the dual-role port
so that it is in host mode.
- suspend to mem.
- disconnect otg adapter.
- resume the system.

If we call dwc3_host_exit() before tasks are thawed
xhci_plat_remove() seems to lock up at the second usb_remove_hcd() call.

To work around this we queue the _dwc3_set_mode() work on
the system_freezable_wq.

Fixes: 41ce1456e1 ("usb: dwc3: core: make dwc3_set_mode() work properly")
Cc: <stable@vger.kernel.org> # v4.12+
Suggested-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:46 +01:00
Xinyong
99d7fb05c1 usb: gadget: f_fs: Fix use-after-free in ffs_fs_kill_sb()
commit 1a087f0321 upstream.

When I debug a kernel crash issue in funcitonfs, found ffs_data.ref
overflowed, While functionfs is unmounting, ffs_data is put twice.

Commit 43938613c6 ("drivers, usb: convert ffs_data.ref from atomic_t to
refcount_t") can avoid refcount overflow, but that is risk some situations.
So no need put ffs data in ffs_fs_kill_sb, already put in ffs_data_closed.

The issue can be reproduced in Mediatek mt6763 SoC, ffs for ADB device.
KASAN enabled configuration reports use-after-free errro.

BUG: KASAN: use-after-free in refcount_dec_and_test+0x14/0xe0 at addr ffffffc0579386a0
Read of size 4 by task umount/4650
====================================================
BUG kmalloc-512 (Tainted: P        W  O   ): kasan: bad access detected
-----------------------------------------------------------------------------

INFO: Allocated in ffs_fs_mount+0x194/0x844 age=22856 cpu=2 pid=566
    alloc_debug_processing+0x1ac/0x1e8
    ___slab_alloc.constprop.63+0x640/0x648
    __slab_alloc.isra.57.constprop.62+0x24/0x34
    kmem_cache_alloc_trace+0x1a8/0x2bc
    ffs_fs_mount+0x194/0x844
    mount_fs+0x6c/0x1d0
    vfs_kern_mount+0x50/0x1b4
    do_mount+0x258/0x1034
INFO: Freed in ffs_data_put+0x25c/0x320 age=0 cpu=3 pid=4650
    free_debug_processing+0x22c/0x434
    __slab_free+0x2d8/0x3a0
    kfree+0x254/0x264
    ffs_data_put+0x25c/0x320
    ffs_data_closed+0x124/0x15c
    ffs_fs_kill_sb+0xb8/0x110
    deactivate_locked_super+0x6c/0x98
    deactivate_super+0xb0/0xbc
INFO: Object 0xffffffc057938600 @offset=1536 fp=0x          (null)
......
Call trace:
[<ffffff900808cf5c>] dump_backtrace+0x0/0x250
[<ffffff900808d3a0>] show_stack+0x14/0x1c
[<ffffff90084a8c04>] dump_stack+0xa0/0xc8
[<ffffff900826c2b4>] print_trailer+0x158/0x260
[<ffffff900826d9d8>] object_err+0x3c/0x40
[<ffffff90082745f0>] kasan_report_error+0x2a8/0x754
[<ffffff9008274f84>] kasan_report+0x5c/0x60
[<ffffff9008273208>] __asan_load4+0x70/0x88
[<ffffff90084cd81c>] refcount_dec_and_test+0x14/0xe0
[<ffffff9008d98f9c>] ffs_data_put+0x80/0x320
[<ffffff9008d9d904>] ffs_fs_kill_sb+0xc8/0x110
[<ffffff90082852a0>] deactivate_locked_super+0x6c/0x98
[<ffffff900828537c>] deactivate_super+0xb0/0xbc
[<ffffff90082af0c0>] cleanup_mnt+0x64/0xec
[<ffffff90082af1b0>] __cleanup_mnt+0x10/0x18
[<ffffff90080d9e68>] task_work_run+0xcc/0x124
[<ffffff900808c8c0>] do_notify_resume+0x60/0x70
[<ffffff90080866e4>] work_pending+0x10/0x14

Cc: stable@vger.kernel.org
Signed-off-by: Xinyong <xinyong.fang@linux.alibaba.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:46 +01:00
Pete Zaitcev
59b0613d3f usb: usbmon: Read text within supplied buffer size
commit a5f596830e upstream.

This change fixes buffer overflows and silent data corruption with the
usbmon device driver text file read operations.

Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:46 +01:00
Danilo Krummrich
42b8dfefbb usb: quirks: add control message delay for 1b1c:1b20
commit cb88a05887 upstream.

Corsair Strafe RGB keyboard does not respond to usb control messages
sometimes and hence generates timeouts.

Commit de3af5bf25 ("usb: quirks: add delay init quirk for Corsair
Strafe RGB keyboard") tried to fix those timeouts by adding
USB_QUIRK_DELAY_INIT.

Unfortunately, even with this quirk timeouts of usb_control_msg()
can still be seen, but with a lower frequency (approx. 1 out of 15):

[   29.103520] usb 1-8: string descriptor 0 read error: -110
[   34.363097] usb 1-8: can't set config #1, error -110

Adding further delays to different locations where usb control
messages are issued just moves the timeouts to other locations,
e.g.:

[   35.400533] usbhid 1-8:1.0: can't add hid device: -110
[   35.401014] usbhid: probe of 1-8:1.0 failed with error -110

The only way to reliably avoid those issues is having a pause after
each usb control message. In approx. 200 boot cycles no more timeouts
were seen.

Addionaly, keep USB_QUIRK_DELAY_INIT as it turned out to be necessary
to have the delay in hub_port_connect() after hub_port_init().

The overall boot time seems not to be influenced by these additional
delays, even on fast machines and lightweight distributions.

Fixes: de3af5bf25 ("usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard")
Cc: stable@vger.kernel.org
Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:46 +01:00
Colin Ian King
d4f0bf4525 usbip: vudc: fix null pointer dereference on udc->lock
commit df3334c223 upstream.

Currently the driver attempts to spin lock on udc->lock before a NULL
pointer check is performed on udc, hence there is a potential null
pointer dereference on udc->lock.  Fix this by moving the null check
on udc before the lock occurs.

Fixes: ea6873a45a ("usbip: vudc: Add SysFS infrastructure for VUDC")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:46 +01:00
Teijo Kinnunen
f8187fd2ae USB: storage: Add JMicron bridge 152d:2567 to unusual_devs.h
commit 5126a504b6 upstream.

This USB-SATA controller seems to be similar with JMicron bridge
152d:2566 already on the list. Adding it here fixes "Invalid
field in cdb" errors.

Signed-off-by: Teijo Kinnunen <teijo.kinnunen@code-q.fi>
Cc: stable@vger.kernel.org
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:46 +01:00
Oliver Neukum
fdd0f1b2ef uas: fix comparison for error code
commit 9a513c905b upstream.

A typo broke the comparison.

Fixes: cbeef22fd6 ("usb: uas: unconditionally bring back host after reset")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
CC: stable@kernel.org
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:45 +01:00
Mathias Nyman
d03fbfded5 xhci: fix endpoint context tracer output
commit 97ef0faf57 upstream.

Fix incorrent values showed for max Primary stream and
Linear stream array (LSA) values in the endpoint context
decoder.

Fixes: 19a7d0d65c ("usb: host: xhci: add Slot and EP Context tracers")
Cc: <stable@vger.kernel.org> # v4.12+
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:45 +01:00
Kai-Heng Feng
d7c3836cd1 xhci: Fix front USB ports on ASUS PRIME B350M-A
commit 191edc5e2e upstream.

When a USB device gets plugged on ASUS PRIME B350M-A's front ports, the
xHC stops working:
[  549.114587] xhci_hcd 0000:02:00.0: WARN: xHC CMD_RUN timeout
[  549.114608] suspend_common(): xhci_pci_suspend+0x0/0xc0 returns -110
[  549.114638] xhci_hcd 0000:02:00.0: can't suspend (hcd_pci_runtime_suspend returned -110)

Delay before running xHC command CMD_RUN can workaround the issue.

Use a new quirk to make the delay only targets to the affected xHC.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:45 +01:00
Yoshihiro Shimoda
490869f59f usb: host: xhci-rcar: add support for r8a77965
commit 015dbeb228 upstream.

This patch adds support for r8a77965 (R-Car M3-N).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-19 08:42:45 +01:00
Yoshihiro Shimoda
faf1a75046 usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path
commit 17aa31f13c upstream.

This fixes an issue that a gadget driver (usb_f_fs) is possible to
stop rx transactions after the usb-dmac is used because the following
functions missed to set/check the "running" flag.
 - usbhsf_dma_prepare_pop_with_usb_dmac()
 - usbhsf_dma_pop_done_with_usb_dmac()

So, if next transaction uses pio, the usbhsf_prepare_pop() can not
start the transaction because the "running" flag is 0.

Fixes: 8355b2b308 ("usb: renesas_usbhs: fix the behavior of some usbhs_pkt_handle")
Cc: <stable@vger.kernel.org> # v3.19+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:43 +01:00
Jack Pham
51aba4e16c usb: gadget: f_fs: Use config_ep_by_speed()
commit 675272d092 upstream.

In commit 2bfa0719ac ("usb: gadget: function: f_fs: pass
companion descriptor along") there is a pointer arithmetic
bug where the comp_desc is obtained as follows:

 comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +
	       USB_DT_ENDPOINT_SIZE);

Since ds is a pointer to usb_endpoint_descriptor, adding
7 to it ends up going out of bounds (7 * sizeof(struct
usb_endpoint_descriptor), which is actually 7*9 bytes) past
the SS descriptor. As a result the maxburst value will be
read incorrectly, and the UDC driver will also get a garbage
comp_desc (assuming it uses it).

Since Felipe wrote, "Eventually, f_fs.c should be converted
to use config_ep_by_speed() like all other functions, though",
let's finally do it. This allows the other usb_ep fields to
be properly populated, such as maxpacket and mult. It also
eliminates the awkward speed-based descriptor lookup since
config_ep_by_speed() does that already using the ones found
in struct usb_function.

Fixes: 2bfa0719ac ("usb: gadget: function: f_fs: pass companion descriptor along")
Cc: stable@vger.kernel.org
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:43 +01:00
Jack Pham
6e936140e0 usb: gadget: f_fs: Process all descriptors during bind
commit 6cf439e0d3 upstream.

During _ffs_func_bind(), the received descriptors are evaluated
to prepare for binding with the gadget in order to allocate
endpoints and optionally set up OS descriptors. However, the
high- and super-speed descriptors are only parsed based on
whether the gadget_is_dualspeed() and gadget_is_superspeed()
calls are true, respectively.

This is a problem in case a userspace program always provides
all of the {full,high,super,OS} descriptors when configuring a
function. Then, for example if a gadget device is not capable
of SuperSpeed, the call to ffs_do_descs() for the SS descriptors
is skipped, resulting in an incorrect offset calculation for
the vla_ptr when moving on to the OS descriptors that follow.
This causes ffs_do_os_descs() to fail as it is now looking at
the SS descriptors' offset within the raw_descs buffer instead.

_ffs_func_bind() should evaluate the descriptors unconditionally,
so remove the checks for gadget speed.

Fixes: f0175ab519 ("usb: gadget: f_fs: OS descriptors support")
Cc: stable@vger.kernel.org
Co-Developed-by: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:43 +01:00
Bin Liu
7551ff0ab2 Revert "usb: musb: host: don't start next rx urb if current one failed"
commit 44eb5e12b8 upstream.

This reverts commit dbac5d07d1.

commit dbac5d07d1 ("usb: musb: host: don't start next rx urb if current one failed")
along with commit b580121222 ("usb: musb: host: clear rxcsr error bit if set")
try to solve the issue described in [1], but the latter alone is
sufficient, and the former causes the issue as in [2], so now revert it.

[1] https://marc.info/?l=linux-usb&m=146173995117456&w=2
[2] https://marc.info/?l=linux-usb&m=151689238420622&w=2

Cc: stable@vger.kernel.org # v4.7+
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:43 +01:00
Karsten Koop
7e402ea2cd usb: ldusb: add PIDs for new CASSY devices supported by this driver
commit 52ad2bd891 upstream.

This patch adds support for new CASSY devices to the ldusb driver. The
PIDs are also added to the ignore list in hid-quirks.

Signed-off-by: Karsten Koop <kkoop@ld-didactic.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:43 +01:00
Thinh Nguyen
a1e8aa2176 usb: dwc3: ep0: Reset TRB counter for ep0 IN
commit f035d139ff upstream.

DWC3 tracks TRB counter for each ep0 direction separately. In control
read transfer completion handler, the driver needs to reset the TRB
enqueue counter for ep0 IN direction. Currently the driver only resets
the TRB counter for control OUT endpoint. Check for the data direction
and properly reset the TRB counter from correct control endpoint.

Cc: stable@vger.kernel.org
Fixes: c2da2ff006 ("usb: dwc3: ep0: don't use ep0in for transfers")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:43 +01:00
Thinh Nguyen
49e18b2ba8 usb: dwc3: gadget: Set maxpacket size for ep0 IN
commit 6180026341 upstream.

There are 2 control endpoint structures for DWC3. However, the driver
only updates the OUT direction control endpoint structure during
ConnectDone event. DWC3 driver needs to update the endpoint max packet
size for control IN endpoint as well. If the max packet size is not
properly set, then the driver will incorrectly calculate the data
transfer size and fail to send ZLP for HS/FS 3-stage control read
transfer.

The fix is simply to update the max packet size for the ep0 IN direction
during ConnectDone event.

Cc: stable@vger.kernel.org
Fixes: 72246da40f ("usb: Introduce DesignWare USB3 DRD Driver")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:43 +01:00
Peter Chen
1075f60786 usb: host: ehci: use correct device pointer for dma ops
commit 02a10f061a upstream.

commit a8c06e407e ("usb: separate out sysdev pointer from usb_bus")
converted to use hcd->self.sysdev for DMA operations instead of
hcd->self.controller, but forgot to do it for hcd test mode. Replace
the correct one in this commit.

Fixes: a8c06e407e ("usb: separate out sysdev pointer from usb_bus")
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:42 +01:00
Jack Stocker
f74ddc2e61 Add delay-init quirk for Corsair K70 RGB keyboards
commit 7a1646d922 upstream.

Following on from this patch: https://lkml.org/lkml/2017/11/3/516,
Corsair K70 RGB keyboards also require the DELAY_INIT quirk to
start correctly at boot.

Device ids found here:
usb 3-3: New USB device found, idVendor=1b1c, idProduct=1b13
usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-3: Product: Corsair K70 RGB Gaming Keyboard

Signed-off-by: Jack Stocker <jackstocker.93@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:42 +01:00
AMAN DEEP
7e8407d146 usb: ohci: Proper handling of ed_rm_list to handle race condition between usb_kill_urb() and finish_unlinks()
commit 46408ea558 upstream.

There is a race condition between finish_unlinks->finish_urb() function
and usb_kill_urb() in ohci controller case. The finish_urb calls
spin_unlock(&ohci->lock) before usb_hcd_giveback_urb() function call,
then if during this time, usb_kill_urb is called for another endpoint,
then new ed will be added to ed_rm_list at beginning for unlink, and
ed_rm_list will point to newly added.

When finish_urb() is completed in finish_unlinks() and ed->td_list
becomes empty as in below code (in finish_unlinks() function):

        if (list_empty(&ed->td_list)) {
                *last = ed->ed_next;
                ed->ed_next = NULL;
        } else if (ohci->rh_state == OHCI_RH_RUNNING) {
                *last = ed->ed_next;
                ed->ed_next = NULL;
                ed_schedule(ohci, ed);
        }

The *last = ed->ed_next will make ed_rm_list to point to ed->ed_next
and previously added ed by usb_kill_urb will be left unreferenced by
ed_rm_list. This causes usb_kill_urb() hang forever waiting for
finish_unlink to remove added ed from ed_rm_list.

The main reason for hang in this race condtion is addition and removal
of ed from ed_rm_list in the beginning during usb_kill_urb and later
last* is modified in finish_unlinks().

As suggested by Alan Stern, the solution for proper handling of
ohci->ed_rm_list is to remove ed from the ed_rm_list before finishing
any URBs. Then at the end, we can add ed back to the list if necessary.

This properly handle the updated ohci->ed_rm_list in usb_kill_urb().

Fixes: 977dcfdc60 ("USB: OHCI: don't lose track of EDs when a controller dies")
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@vger.kernel.org>
Signed-off-by: Aman Deep <aman.deep@samsung.com>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:42 +01:00
Shigeru Yoshida
85c3d26bd7 ohci-hcd: Fix race condition caused by ohci_urb_enqueue() and io_watchdog_func()
commit b2685bdacd upstream.

Running io_watchdog_func() while ohci_urb_enqueue() is running can
cause a race condition where ohci->prev_frame_no is corrupted and the
watchdog can mis-detect following error:

  ohci-platform 664a0800.usb: frame counter not updating; disabled
  ohci-platform 664a0800.usb: HC died; cleaning up

Specifically, following scenario causes a race condition:

  1. ohci_urb_enqueue() calls spin_lock_irqsave(&ohci->lock, flags)
     and enters the critical section
  2. ohci_urb_enqueue() calls timer_pending(&ohci->io_watchdog) and it
     returns false
  3. ohci_urb_enqueue() sets ohci->prev_frame_no to a frame number
     read by ohci_frame_no(ohci)
  4. ohci_urb_enqueue() schedules io_watchdog_func() with mod_timer()
  5. ohci_urb_enqueue() calls spin_unlock_irqrestore(&ohci->lock,
     flags) and exits the critical section
  6. Later, ohci_urb_enqueue() is called
  7. ohci_urb_enqueue() calls spin_lock_irqsave(&ohci->lock, flags)
     and enters the critical section
  8. The timer scheduled on step 4 expires and io_watchdog_func() runs
  9. io_watchdog_func() calls spin_lock_irqsave(&ohci->lock, flags)
     and waits on it because ohci_urb_enqueue() is already in the
     critical section on step 7
 10. ohci_urb_enqueue() calls timer_pending(&ohci->io_watchdog) and it
     returns false
 11. ohci_urb_enqueue() sets ohci->prev_frame_no to new frame number
     read by ohci_frame_no(ohci) because the frame number proceeded
     between step 3 and 6
 12. ohci_urb_enqueue() schedules io_watchdog_func() with mod_timer()
 13. ohci_urb_enqueue() calls spin_unlock_irqrestore(&ohci->lock,
     flags) and exits the critical section, then wake up
     io_watchdog_func() which is waiting on step 9
 14. io_watchdog_func() enters the critical section
 15. io_watchdog_func() calls ohci_frame_no(ohci) and set frame_no
     variable to the frame number
 16. io_watchdog_func() compares frame_no and ohci->prev_frame_no

On step 16, because this calling of io_watchdog_func() is scheduled on
step 4, the frame number set in ohci->prev_frame_no is expected to the
number set on step 3.  However, ohci->prev_frame_no is overwritten on
step 11.  Because step 16 is executed soon after step 11, the frame
number might not proceed, so ohci->prev_frame_no must equals to
frame_no.

To address above scenario, this patch introduces a special sentinel
value IO_WATCHDOG_OFF and set this value to ohci->prev_frame_no when
the watchdog is not pending or running.  When ohci_urb_enqueue()
schedules the watchdog (step 4 and 12 above), it compares
ohci->prev_frame_no to IO_WATCHDOG_OFF so that ohci->prev_frame_no is
not overwritten while io_watchdog_func() is running.

Signed-off-by: Shigeru Yoshida <Shigeru.Yoshida@windriver.com>
Signed-off-by: Haiqing Bai <Haiqing.Bai@windriver.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-28 10:19:41 +01:00
Andreas Platschek
abe8e59ab2 usb: dwc3: of-simple: fix missing clk_disable_unprepare
[ Upstream commit ded600ea9f ]

If of_clk_get() fails, the clean-up of already initialized clocks should be
the same as when clk_prepare_enable() fails. Thus a clk_disable_unprepare()
for each clock should be called before the clk_put().

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: 16adc674d0 ("usb: dwc3: ep0: fix setup_packet_pending initialization")

Signed-off-by: Andreas Platschek <andreas.platschek@opentech.at>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-25 11:08:03 +01:00
Vincent Pelletier
98b35258b3 usb: dwc3: gadget: Wait longer for controller to end command processing
[ Upstream commit 8722e095f5 ]

DWC3_DEPCMD_ENDTRANSFER has been witnessed to require around 600 iterations
before controller would become idle again after unplugging the USB cable
with AIO reads submitted.
Bump timeout from 500 iterations to 1000 so dwc3_stop_active_transfer does
not receive -ETIMEDOUT and does not WARN:

[   81.326273] ------------[ cut here ]------------
[   81.335341] WARNING: CPU: 0 PID: 1874 at drivers/usb/dwc3/gadget.c:2627 dwc3_stop_active_transfer.constprop.23+0x69/0xc0 [dwc3]
[   81.347094] Modules linked in: usb_f_fs libcomposite configfs bnep btsdio bluetooth ecdh_generic brcmfmac brcmutil dwc3 intel_powerclamp coretemp ulpi kvm_intel udc_core kvm irqbypass crc32_pclmul crc32c_intel pcbc dwc3_pci aesni_intel aes_i586 crypto_simd cryptd ehci_pci ehci_hcd basincove_gpadc industrialio gpio_keys usbcore usb_common
[   81.378142] CPU: 0 PID: 1874 Comm: irq/34-dwc3 Not tainted 4.14.0-edison+ #119
[   81.385545] Hardware name: Intel Corporation Merrifield/BODEGA BAY, BIOS 542 2015.01.21:18.19.48
[   81.394548] task: f5b1be00 task.stack: f420a000
[   81.399219] EIP: dwc3_stop_active_transfer.constprop.23+0x69/0xc0 [dwc3]
[   81.406086] EFLAGS: 00010086 CPU: 0
[   81.409672] EAX: 0000001f EBX: f5729800 ECX: c132a2a2 EDX: 00000000
[   81.416096] ESI: f4054014 EDI: f41cf400 EBP: f420be10 ESP: f420bdf4
[   81.422521]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[   81.428061] CR0: 80050033 CR2: b7a3f000 CR3: 01d94000 CR4: 001006d0
[   81.434483] Call Trace:
[   81.437063]  __dwc3_gadget_ep_disable+0xa3/0x2b0 [dwc3]
[   81.442438]  ? _raw_spin_lock_irqsave+0x32/0x40
[   81.447135]  dwc3_gadget_ep_disable+0xbf/0xe0 [dwc3]
[   81.452269]  usb_ep_disable+0x1c/0xd0 [udc_core]
[   81.457048]  ffs_func_eps_disable.isra.15+0x3b/0x90 [usb_f_fs]
[   81.463070]  ffs_func_set_alt+0x7d/0x310 [usb_f_fs]
[   81.468132]  ffs_func_disable+0x14/0x20 [usb_f_fs]
[   81.473075]  reset_config+0x5b/0x90 [libcomposite]
[   81.478023]  composite_disconnect+0x2b/0x50 [libcomposite]
[   81.483685]  dwc3_disconnect_gadget+0x39/0x50 [dwc3]
[   81.488808]  dwc3_gadget_disconnect_interrupt+0x21b/0x250 [dwc3]
[   81.495014]  dwc3_thread_interrupt+0x2a8/0xf70 [dwc3]
[   81.500219]  ? __schedule+0x78c/0x7e0
[   81.504027]  irq_thread_fn+0x18/0x30
[   81.507715]  ? irq_thread+0xb7/0x180
[   81.511400]  irq_thread+0x111/0x180
[   81.515000]  ? irq_finalize_oneshot+0xe0/0xe0
[   81.519490]  ? wake_threads_waitq+0x30/0x30
[   81.523806]  kthread+0x107/0x110
[   81.527131]  ? disable_percpu_irq+0x50/0x50
[   81.531439]  ? kthread_stop+0x150/0x150
[   81.535397]  ret_from_fork+0x19/0x24
[   81.539136] Code: 89 d8 c7 45 ec 00 00 00 00 c7 45 f0 00 00 00 00 c7 45 f4 00 00 00 00 e8 56 ef ff ff 85 c0 74 12 50 68 b9 1c 14 f8 e8 64 0f f7 c8 <0f> ff 58 5a 8d 76 00 8b 83 98 00 00 00 c6 83 a0 00 00 00 00 83
[   81.559295] ---[ end trace f3133eec81a473b8 ]---

Number of iterations measured on 4 consecutive unplugs:
[ 1088.799777] dwc3_send_gadget_ep_cmd(cmd=331016, params={0, 0, 0}) iterated 605 times
[ 1222.024986] dwc3_send_gadget_ep_cmd(cmd=331016, params={0, 0, 0}) iterated 580 times
[ 1317.590452] dwc3_send_gadget_ep_cmd(cmd=331016, params={0, 0, 0}) iterated 598 times
[ 1453.218314] dwc3_send_gadget_ep_cmd(cmd=331016, params={0, 0, 0}) iterated 594 times

Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-25 11:08:03 +01:00
Shuah Khan
c276379fa7 usbip: keep usbip_device sockfd state in sync with tcp_socket
commit 009f41aed4 upstream.

Keep usbip_device sockfd state in sync with tcp_socket. When tcp_socket
is reset to null, reset sockfd to -1 to keep it in sync.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-25 11:07:53 +01:00
Takashi Iwai
ebf7d035c3 usb: core: Add a helper function to check the validity of EP type in URB
commit e901b98738 upstream.

This patch adds a new helper function to perform a sanity check of the
given URB to see whether it contains a valid endpoint.  It's a light-
weight version of what usb_submit_urb() does, but without the kernel
warning followed by the stack trace, just returns an error code.

Especially for a driver that doesn't parse the descriptor but fills
the URB with the fixed endpoint (e.g. some quirks for non-compliant
devices), this kind of check is preferable at the probe phase before
actually submitting the urb.

Tested-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-25 11:07:45 +01:00
James Hogan
e4ea7c1222 usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT
commit ec897569ad upstream.

Move the Kconfig symbols USB_UHCI_BIG_ENDIAN_MMIO and
USB_UHCI_BIG_ENDIAN_DESC out of drivers/usb/host/Kconfig, which is
conditional upon USB && USB_SUPPORT, so that it can be freely selected
by platform Kconfig symbols in architecture code.

For example once the MIPS_GENERIC platform selects are fixed in commit
2e6522c565 ("MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN"), the MIPS
32r6_defconfig warns like so:

warning: (MIPS_GENERIC) selects USB_UHCI_BIG_ENDIAN_MMIO which has unmet direct dependencies (USB_SUPPORT && USB)
warning: (MIPS_GENERIC) selects USB_UHCI_BIG_ENDIAN_DESC which has unmet direct dependencies (USB_SUPPORT && USB)

Fixes: 2e6522c565 ("MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN")
Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: linux-usb@vger.kernel.org
Cc: linux-mips@linux-mips.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Patchwork: https://patchwork.linux-mips.org/patch/18559/
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-22 15:42:31 +01:00
Benjamin Herrenschmidt
2ba5966edd usb/gadget: Fix "high bandwidth" check in usb_gadget_ep_match_desc()
commit 11fb379987 upstream.

The current code tries to test for bits that are masked out by
usb_endpoint_maxp(). Instead, use the proper accessor to access
the new high bandwidth bits.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:21 +01:00
Oliver Neukum
e0096f93aa usb: uas: unconditionally bring back host after reset
commit cbeef22fd6 upstream.

Quoting Hans:

If we return 1 from our post_reset handler, then our disconnect handler
will be called immediately afterwards. Since pre_reset blocks all scsi
requests our disconnect handler will then hang in the scsi_remove_host
call.

This is esp. bad because our disconnect handler hanging for ever also
stops the USB subsys from enumerating any new USB devices, causes commands
like lsusb to hang, etc.

In practice this happens when unplugging some uas devices because the hub
code may see the device as needing a warm-reset and calls usb_reset_device
before seeing the disconnect. In this case uas_configure_endpoints fails
with -ENODEV. We do not want to print an error for this, so this commit
also silences the shost_printk for -ENODEV.

ENDQUOTE

However, if we do that we better drop any unconditional execution
and report to the SCSI subsystem that we have undergone a reset
but we are not operational now.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:21 +01:00
Hemant Kumar
75816a439f usb: f_fs: Prevent gadget unbind if it is already unbound
commit ce5bf9a50d upstream.

Upon usb composition switch there is possibility of ep0 file
release happening after gadget driver bind. In case of composition
switch from adb to a non-adb composition gadget will never gets
bound again resulting into failure of usb device enumeration. Fix
this issue by checking FFS_FL_BOUND flag and avoid extra
gadget driver unbind if it is already done as part of composition
switch.

This fixes adb reconnection error reported on Android running
v4.4 and above kernel versions. Verified on Hikey running vanilla
v4.15-rc7 + few out of tree Mali patches.

Reviewed-at: https://android-review.googlesource.com/#/c/582632/

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg KH <gregkh@linux-foundation.org>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Dmitry Shmidt <dimitrysh@google.com>
Cc: Badhri <badhri@google.com>
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
[AmitP: Cherry-picked it from android-4.14 and updated the commit log]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:21 +01:00
Johan Hovold
1c226267c2 USB: serial: simple: add Motorola Tetra driver
commit 46fe895e22 upstream.

Add new Motorola Tetra (simple) driver for Motorola Solutions TETRA PEI
devices.

D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=0cad ProdID=9011 Rev=24.16
S:  Manufacturer=Motorola Solutions Inc.
S:  Product=Motorola Solutions TETRA PEI interface
C:  #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)

Note that these devices do not support the CDC SET_CONTROL_LINE_STATE
request (for any interface).

Reported-by: Max Schulze <max.schulze@posteo.de>
Tested-by: Max Schulze <max.schulze@posteo.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:21 +01:00
Jia-Ju Bai
9a24d3f8c5 USB: serial: io_edgeport: fix possible sleep-in-atomic
commit c7b8f77872 upstream.

According to drivers/usb/serial/io_edgeport.c, the driver may sleep
under a spinlock.
The function call path is:
edge_bulk_in_callback (acquire the spinlock)
   process_rcvd_data
     process_rcvd_status
       change_port_settings
         send_iosp_ext_cmd
           write_cmd_usb
             usb_kill_urb --> may sleep

To fix it, the redundant usb_kill_urb() is removed from the error path
after usb_submit_urb() fails.

This possible bug is found by my static analysis tool (DSAC) and checked
by my code review.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:20 +01:00
Oliver Neukum
34b812ca30 CDC-ACM: apply quirk for card reader
commit df1cc78a52 upstream.

This devices drops random bytes from messages if you talk to it
too fast.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:20 +01:00
Hans de Goede
ca7964983c USB: cdc-acm: Do not log urb submission errors on disconnect
commit f0386c083c upstream.

When disconnected sometimes the cdc-acm driver logs errors like these:

[20278.039417] cdc_acm 2-2:2.1: urb 9 failed submission with -19
[20278.042924] cdc_acm 2-2:2.1: urb 10 failed submission with -19
[20278.046449] cdc_acm 2-2:2.1: urb 11 failed submission with -19
[20278.049920] cdc_acm 2-2:2.1: urb 12 failed submission with -19
[20278.053442] cdc_acm 2-2:2.1: urb 13 failed submission with -19
[20278.056915] cdc_acm 2-2:2.1: urb 14 failed submission with -19
[20278.060418] cdc_acm 2-2:2.1: urb 15 failed submission with -19

Silence these by not logging errors when the result is -ENODEV.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:19 +01:00
Greg Kroah-Hartman
bfc372036b USB: serial: pl2303: new device id for Chilitag
commit d08dd3f3dd upstream.

This adds a new device id for Chilitag devices to the pl2303 driver.

Reported-by: "Chu.Mike [朱堅宜]" <Mike-Chu@prolific.com.tw>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:19 +01:00
OKAMOTO Yoshiaki
9479141113 usb: option: Add support for FS040U modem
commit 69341bd150 upstream.

FS040U modem is manufactured by omega, and sold by Fujisoft. This patch
adds ID of the modem to use option1 driver. Interface 3 is used as
qmi_wwan, so the interface is ignored.

Signed-off-by: Yoshiaki Okamoto <yokamoto@allied-telesis.co.jp>
Signed-off-by: Hiroyuki Yamamoto <hyamamo@allied-telesis.co.jp>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:19 +01:00
Colin Ian King
0479bc0176 usb: gadget: don't dereference g until after it has been null checked
[ Upstream commit b2fc059fa5 ]

Avoid dereferencing pointer g until after g has been sanity null checked;
move the assignment of cdev much later when it is required into a more
local scope.

Detected by CoverityScan, CID#1222135 ("Dereference before null check")

Fixes: b785ea7ce6 ("usb: gadget: composite: fix ep->maxburst initialization")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-03 17:39:17 +01:00
Icenowy Zheng
8e13548c7f uas: ignore UAS for Norelsys NS1068(X) chips
commit 928afc8527 upstream.

The UAS mode of Norelsys NS1068(X) is reported to fail to work on
several platforms with the following error message:

xhci-hcd xhci-hcd.0.auto: ERROR Transfer event for unknown stream ring slot 1 ep 8
xhci-hcd xhci-hcd.0.auto: @00000000bf04a400 00000000 00000000 1b000000 01098001

And when trying to mount a partition on the disk the disk will
disconnect from the USB controller, then after re-connecting the device
will be offlined and not working at all.

Falling back to USB mass storage can solve this problem, so ignore UAS
function of this chip.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:26 +01:00
Shuah Khan
0382becc1d usbip: vudc_tx: fix v_send_ret_submit() vulnerability to null xfer buffer
commit 5fd77a3a0e upstream.

v_send_ret_submit() handles urb with a null transfer_buffer, when it
replays a packet with potential malicious data that could contain a
null buffer.

Add a check for the condition when actual_length > 0 and transfer_buffer
is null.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:26 +01:00
Shuah Khan
e56d7cd5f3 usbip: fix vudc_rx: harden CMD_SUBMIT path to handle malicious input
commit b78d830f00 upstream.

Harden CMD_SUBMIT path to handle malicious input that could trigger
large memory allocations. Add checks to validate transfer_buffer_length
and number_of_packets to protect against bad input requesting for
unbounded memory allocations.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:26 +01:00
Shuah Khan
34e5d097bc usbip: remove kernel addresses from usb device and urb debug msgs
commit e1346fd87c upstream.

usbip_dump_usb_device() and usbip_dump_urb() print kernel addresses.
Remove kernel addresses from usb device and urb debug msgs and improve
the message content.

Instead of printing parent device and bus addresses, print parent device
and bus names.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:26 +01:00
Alan Stern
2817c4c8fc USB: UDC core: fix double-free in usb_add_gadget_udc_release
commit 7ae2c3c280 upstream.

The error-handling pathways in usb_add_gadget_udc_release() are messed
up.  Aside from the uninformative statement labels, they can deallocate
the udc structure after calling put_device(), which is a double-free.
This was observed by KASAN in automatic testing.

This patch cleans up the routine.  It preserves the requirement that
when any failure occurs, we call put_device(&gadget->dev).

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:26 +01:00
Pete Zaitcev
204d8fb1b4 USB: fix usbmon BUG trigger
commit 46eb14a6e1 upstream.

Automated tests triggered this by opening usbmon and accessing the
mmap while simultaneously resizing the buffers. This bug was with
us since 2006, because typically applications only size the buffers
once and thus avoid racing. Reported by Kirill A. Shutemov.

Reported-by: <syzbot+f9831b881b3e849829fc@syzkaller.appspotmail.com>
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:26 +01:00
Stefan Agner
f562a823dd usb: misc: usb3503: make sure reset is low for at least 100us
commit b8626f1dc2 upstream.

When using a GPIO which is high by default, and initialize the
driver in USB Hub mode, initialization fails with:
  [  111.757794] usb3503 0-0008: SP_ILOCK failed (-5)

The reason seems to be that the chip is not properly reset.
Probe does initialize reset low, however some lines later the
code already set it back high, which is not long enouth.

Make sure reset is asserted for at least 100us by inserting a
delay after initializing the reset pin during probe.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:25 +01:00
Christian Holl
d5f322fea6 USB: serial: cp210x: add new device ID ELV ALC 8xxx
commit d14ac576d1 upstream.

This adds the ELV ALC 8xxx Battery Charging device
to the list of USB IDs of drivers/usb/serial/cp210x.c

Signed-off-by: Christian Holl <cyborgx1@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:25 +01:00
Diego Elio Pettenò
fbe0d2251b USB: serial: cp210x: add IDs for LifeScan OneTouch Verio IQ
commit 4307413256 upstream.

Add IDs for the OneTouch Verio IQ that comes with an embedded
USB-to-serial converter.

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-17 09:45:25 +01:00
Daniel Thompson
f0f18aa8f7 usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201
commit da99706689 upstream.

When plugging in a USB webcam I see the following message:
xhci_hcd 0000:04:00.0: WARN Successful completion on short TX: needs
XHCI_TRUST_TX_LENGTH quirk?
handle_tx_event: 913 callbacks suppressed

All is quiet again with this patch (and I've done a fair but of soak
testing with the camera since).

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-02 20:31:15 +01:00
Mathias Nyman
c7c4e00a66 USB: Fix off by one in type-specific length check of BOS SSP capability
commit 07b9f12864 upstream.

USB 3.1 devices are not detected as 3.1 capable since 4.15-rc3 due to a
off by one in commit 81cf4a4536 ("USB: core: Add type-specific length
check of BOS descriptors")

It uses USB_DT_USB_SSP_CAP_SIZE() to get SSP capability size which takes
the zero based SSAC as argument, not the actual count of sublink speed
attributes.

USB3 spec 9.6.2.5 says "The number of Sublink Speed Attributes = SSAC + 1."

The type-specific length check patch was added to stable and needs to be
fixed there as well

Fixes: 81cf4a4536 ("USB: core: Add type-specific length check of BOS descriptors")
CC: Masakazu Mokuno <masakazu.mokuno@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-02 20:31:15 +01:00