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linux/drivers
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Stefan Richter b07375b155 ieee1394: nodemgr: revise semaphore protection of driver core data 
- The list "struct class.children" is supposed to be protected by
   class.sem, not by class.subsys.rwsem.

 - nodemgr_remove_uds() iterated over nodemgr_ud_class.children without
   proper protection.  This was never observed as a bug since the code
   is usually only accessed by knodemgrd.  All knodemgrds are currently
   globally serialized.  But userspace can trigger this code too by
   writing to /sys/bus/ieee1394/destroy_node.

 - Clean up access to the FireWire bus type's subsys.rwsem:  Access it
   uniformly via ieee1394_bus_type.  Shrink rwsem protected regions
   where possible.  Expand them where necessary.  The latter wasn't a
   problem so far because knodemgr is globally serialized.

This should harden the interaction of ieee1394 with sysfs and lay ground
for deserialized operation of multiple knodemgrds and for implementation
of subthreads for parallelized scanning and probing.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
History 2006-12-07 21:32:10 +01:00
..
acorn IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
acpi Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-12-05 17:01:28 +00:00
amba [PATCH] 64bit resource: fix up printks for resources in misc drivers 2006-06-27 09:23:59 -07:00
ata [PATCH] libata: Incorrect timing computation for PIO5/6 2006-12-07 07:37:07 -05:00
atm Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2006-12-07 09:05:15 -08:00
base Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
block Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2006-12-07 09:05:15 -08:00
bluetooth [PATCH] lockdep: annotate bcsp driver 2006-12-07 08:39:34 -08:00
cdrom [PATCH] drivers/cdrom/*: trivial vsnprintf() conversion 2006-12-07 08:39:35 -08:00
char [PATCH] IPMI: fix PROC_FS=n warnings 2006-12-07 08:39:48 -08:00
clocksource [PATCH] clocksource: acpi_pm: add another greylist chipset 2006-10-21 13:35:05 -07:00
connector WorkStruct: make allyesconfig 2006-11-22 14:57:56 +00:00
cpufreq [PATCH] hotplug CPU: clean up hotcpu_notifier() use 2006-12-07 08:39:39 -08:00
crypto [CRYPTO] geode: Make needlessly global geode_aes_crypt() static 2006-12-06 18:38:53 -08:00
dio [PATCH] hp300: fix driver_register() return handling, remove dio_module_init() 2006-03-25 08:22:53 -08:00
dma [PATCH] slab: remove SLAB_KERNEL 2006-12-07 08:39:24 -08:00
edac [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
eisa [PATCH] EISA: handle sysfs errors 2006-10-11 11:14:25 -07:00
fc4 [SCSI] fc4: Conversion to struct scsi_cmnd in fc4 2006-10-25 15:12:45 -07:00
firmware [PATCH] dell_rbu: fix error check 2006-11-16 11:43:38 -08:00
hwmon [PATCH] severing fs.h, radix-tree.h -> sched.h 2006-12-04 02:00:24 -05:00
i2c [PATCH] ... and more work_struct-induced breakage (mips) 2006-12-06 14:51:14 -08:00
ide [PATCH] winbond IDE depends on IDEDMA 2006-12-07 08:39:43 -08:00
ieee1394 ieee1394: nodemgr: revise semaphore protection of driver core data 2006-12-07 21:32:10 +01:00
infiniband [PATCH] slab: remove SLAB_KERNEL 2006-12-07 08:39:24 -08:00
input [PATCH] Correct misc_register return code handling in several drivers 2006-12-07 08:39:35 -08:00
isdn [PATCH] make 1-bit bitfields unsigned 2006-12-07 08:39:38 -08:00
leds [PATCH] PCEngines WRAP LED Support 2006-12-07 08:39:36 -08:00
macintosh [PATCH] Correct misc_register return code handling in several drivers 2006-12-07 08:39:35 -08:00
mca [PATCH] drivers/mca: handle sysfs errors 2006-10-11 11:14:25 -07:00
md Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2006-12-07 09:05:15 -08:00
media [PATCH] make 1-bit bitfields unsigned 2006-12-07 08:39:38 -08:00
message [PATCH] kernel-doc: fix fusion and i2o docs 2006-12-07 08:39:40 -08:00
mfd [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
misc [PATCH] tifm: fix NULL ptr and style 2006-12-07 08:39:33 -08:00
mmc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-12-05 14:37:56 +00:00
mtd [PATCH] slab: remove SLAB_KERNEL 2006-12-07 08:39:24 -08:00
net Add "run_scheduled_work()" workqueue function 2006-12-07 09:28:19 -08:00
nubus Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
oprofile WorkStruct: make allyesconfig 2006-11-22 14:57:56 +00:00
parisc Fix misc .c/.h comment typos 2006-11-30 05:24:39 +01:00
parport [PATCH] parport: section mismatches with HOTPLUG=n 2006-12-07 08:39:40 -08:00
pci [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
pcmcia [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
pnp Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
ps3 [POWERPC] ps3: multiplatform build fixes 2006-12-04 20:41:16 +11:00
rapidio Fix several typos in drivers/ 2006-10-03 22:31:37 +02:00
rtc [PATCH] rtc: ds1743 support 2006-12-07 08:39:43 -08:00
s390 [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
sbus [SPARC]: Fix bus_id[] string overflow. 2006-10-27 01:03:31 -07:00
scsi [PATCH] ide_scsi: allow it to be used for non CD only 2006-12-07 08:39:43 -08:00
serial [PATCH] amba-pl010: clear error flags on rx error 2006-12-07 08:39:44 -08:00
sh [PATCH] Add superhyway_bus_type probe and remove methods 2006-01-13 11:26:09 -08:00
sn [PATCH] ioc4: Enable build on non-SN2 2006-10-17 08:18:42 -07:00
spi [PATCH] spi: check platform_device_register_simple() error 2006-12-07 08:39:42 -08:00
tc [MIPS] Fix DECserial build error by IRQ hander change 2006-10-08 02:38:28 +01:00
telephony [PATCH] pcmcia: conf.ConfigBase and conf.Present consolidation 2006-12-04 20:12:02 -05:00
usb [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
video [PATCH] Trivial cleanup in the PCI IDs for the CS5535 2006-12-07 08:39:44 -08:00
w1 [PATCH] better CONFIG_W1_SLAVE_DS2433_CRC handling 2006-12-07 08:39:43 -08:00
zorro Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Kconfig [PATCH] ioc4: Enable build on non-SN2 2006-10-17 08:18:42 -07:00
Makefile [POWERPC] ps3: Missed renames of CONFIG_PS3 to CONFIG_PPC_PS3 2006-12-04 20:41:14 +11:00