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Stefan Richter 8252bbb136 ieee1394: nodemgr: fix deadlock in shutdown 
If "modprobe ohci1394" was quickly followed by "modprobe -r ohci1394",
say with 1 second pause in between, the modprobe -r got stuck in
uninterruptible sleep in kthread_stop.  At the same time the knodemgrd
slept uninterruptibly in bus_rescan_devices_helper.  That's because
driver_detach took the semaphore of the PCI device and
bus_rescan_devices_helper wanted to take the semaphore of the FireWire
host device's parent, which is the same semaphore. This was a regression
since Linux 2.6.16, commit bf74ad5bc4,
"Hold the device's parent's lock during probe and remove".

The fix (or workaround) adds a dummy driver to the hpsb_host device. Now
bus_rescan_devices_helper won't scan the host device anymore.  This
doesn't hurt since we have no drivers which will bind to these devices
and it is unlikely that there will ever be such a driver.  The dummy
driver is befittingly presented as a representation of ieee1394 itself.

Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=6706

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2006-12-07 23:10:23 +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
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
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: fix deadlock in shutdown 2006-12-07 23:10:23 +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
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
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
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