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Miquel Raynal 6737137331 mtd: rawnand: marvell: fix the IRQ handler complete() condition 
commit 53c83b5975 upstream.

With the current implementation, the complete() in the IRQ handler is
supposed to be called only if the register status has one or the other
RDY bit set. Other events might trigger an interrupt as well if
enabled, but should not end-up with a complete() call.

For this purpose, the code was checking if the other bits were set, in
this case complete() was not called. This is wrong as two events might
happen in a very tight time-frame and if the NDSR status read reports
two bits set (eg. RDY(0) and RDDREQ) at the same time, complete() was
not called.

This logic would lead to timeouts in marvell_nfc_wait_op() and has
been observed on PXA boards (NFCv1) in the Hamming write path.

Fixes: 02f26ecf8c ("mtd: nand: add reworked Marvell NAND controller driver")
Cc: stable@vger.kernel.org
Reported-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2018-11-13 11:08:14 -08:00
arch MIPS: VDSO: Reduce VDSO_RANDOMIZE_SIZE to 64MB for 64bit 2018-11-13 11:08:14 -08:00
block block: don't deal with discard limit in blkdev_issue_discard() 2018-10-18 07:23:40 -06:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto Revert "net: simplify sock_poll_wait" 2018-11-04 14:50:51 +01:00
Documentation Code of Conduct: Change the contact email address 2018-10-22 07:33:36 +01:00
drivers mtd: rawnand: marvell: fix the IRQ handler complete() condition 2018-11-13 11:08:14 -08:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs fscache: Fix out of bound read in long cookie keys 2018-10-18 11:32:21 +02:00
include bpf: fix partial copy of map_ptr when dst is scalar 2018-11-13 11:08:14 -08:00
init Kbuild updates for v4.19 (2nd) 2018-08-25 13:40:38 -07:00
ipc ipc/shm.c: use ERR_CAST() for shm_lock() error return 2018-10-05 16:32:04 -07:00
kernel bpf: fix partial copy of map_ptr when dst is scalar 2018-11-13 11:08:14 -08:00
lib test_ida: Fix lockdep warning 2018-10-15 16:31:29 -04:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm mremap: properly flush TLB before releasing the page 2018-10-18 11:30:52 +02:00
net net: bridge: remove ipv6 zero address check in mcast queries 2018-11-04 14:50:54 +01:00
samples samples: disable CONFIG_SAMPLES for UML 2018-10-11 02:15:46 +09:00
scripts Kbuild fixes for v4.19 (2nd) 2018-10-11 19:23:07 +02:00
security Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" 2018-09-25 13:28:58 +02:00
sound ALSA: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 2018-10-04 07:50:48 +02:00
tools net/ipv6: Allow onlink routes to have a device mismatch if it is the default route 2018-11-04 14:50:52 +01:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt KVM: Remove obsolete kvm_unmap_hva notifier backend 2018-09-07 15:06:02 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Add hch to .get_maintainer.ignore 2015-08-21 14:30:10 -07:00
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS MAINTAINERS: Add an entry for the code of conduct 2018-10-22 07:33:36 +01:00
Makefile Linux 4.19.1 2018-11-04 14:50:54 +01:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.