linux/drivers
Haavard Skinnemoen 348badf1e8 dmaengine: fix broken device refcounting
When a DMA device is unregistered, its reference count is decremented twice
for each channel: Once dma_class_dev_release() and once in
dma_chan_cleanup().  This may result in the DMA device driver's remove()
function completing before all channels have been cleaned up, causing lots
of use-after-free fun.

Fix it by incrementing the device's reference count twice for each
channel during registration.

[dan.j.williams@intel.com: kill unnecessary client refcounting]
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-14 18:45:39 -08:00
..
acorn/char unicode diacritics support 2007-10-17 08:42:52 -07:00
acpi acpi: make ACPI_PROCFS default to y 2007-11-14 18:45:39 -08:00
amba Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
ata libata: Don't fail device revalidation for bad _GTF methods 2007-11-10 00:31:27 -05:00
atm Eliminate pointless casts from void* in a few driver irq handlers. 2007-10-23 19:53:16 -04:00
auxdisplay
base cleanup asm/scatterlist.h includes 2007-11-02 08:47:06 +01:00
block paride: pf driver fixes 2007-11-14 18:45:39 -08:00
bluetooth [Bluetooth] Add generic driver for Bluetooth USB devices 2007-10-22 02:59:46 -07:00
cdrom SG: audit of drivers that use blk_rq_map_sg() 2007-10-24 13:21:21 +02:00
char cm40x0_cs.c: fix debug macros 2007-11-14 18:45:37 -08:00
clocksource
connector [CONNECTOR]: Fix a spurious kfree_skb() call 2007-10-30 21:29:47 -07:00
cpufreq Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2007-10-12 15:49:37 -07:00
cpuidle cpuidle: remove unused exports 2007-10-29 17:27:50 -04:00
crypto [CRYPTO] users: Fix up scatterlist conversion errors 2007-10-27 00:52:07 -07:00
dca I/OAT: Add DCA services 2007-10-16 09:43:09 -07:00
dio
dma dmaengine: fix broken device refcounting 2007-11-14 18:45:39 -08:00
edac NULL terminate the pci_device_ids in pasemi_edac 2007-10-19 11:53:56 -07:00
eisa signedness: module_param_array nump argument 2007-10-14 12:41:52 -07:00
firewire firewire: fw-sbp2: fix refcounting 2007-11-07 01:59:28 +01:00
firmware define global BIT macro 2007-10-19 11:53:42 -07:00
hid HID: Don't access input_dev->private directly 2007-10-31 13:30:35 +01:00
hwmon hwmon: (i5k_amb) Convert macros to C functions 2007-11-08 08:42:47 -05:00
i2c typo fixes 2007-10-20 01:34:40 +02:00
ide ide: remove stale/incorrect comment from setup-pci.c 2007-11-13 22:09:16 +01:00
ieee1394 ieee1394: iso and async streams: s/g list fix 2007-11-04 14:31:16 +01:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2007-10-30 15:26:56 -07:00
input Use i8253.c lock for PC speaker on MIPS, too. 2007-11-02 19:39:18 -07:00
isdn i4l: errors with assignments in if 2007-11-05 15:12:31 -08:00
kvm KVM: SVM: Intercept the 'invd' and 'wbinvd' instructions 2007-11-08 12:05:45 +02:00
leds leds: bugfixes for leds-gpio 2007-11-05 21:54:41 +00:00
lguest lguest_user.c: fix memory leak 2007-11-14 18:45:38 -08:00
macintosh [POWERPC] windfarm: Fix windfarm thread freezer interaction 2007-11-08 14:15:34 +11:00
mca
md Add UNPLUG traces to all appropriate places 2007-11-09 13:41:32 +01:00
media V4L/DVB (6548): pvrusb2: Fix oops on module removal 2007-11-04 21:41:30 -02:00
message i2o: debug messages corrected 2007-11-05 15:12:31 -08:00
mfd typo fixes 2007-10-20 01:34:40 +02:00
misc drivers/misc: Move misplaced pci_dev_put's 2007-11-14 18:45:39 -08:00
mmc Add missing "\n" to log message 2007-11-10 11:59:49 +01:00
mtd Eliminate pointless casts from void* in a few driver irq handlers. 2007-10-23 19:53:16 -04:00
net [NET]: Move unneeded data to initdata section. 2007-11-13 03:23:50 -08:00
nubus
of [SPARC/64]: Consolidate of_register_driver 2007-10-17 21:17:42 -07:00
oprofile oProfile: oops when profile_pc() returns ~0LU 2007-11-14 18:45:37 -08:00
parisc parisc: fix sg_page() fallout 2007-10-23 09:49:31 +02:00
parport [PARPORT] Remove unused 'irq' argument from parport irq functions 2007-10-23 19:53:16 -04:00
pci PCI: Add Kconfig option to disable deprecated pci_find_* API 2007-11-05 13:35:17 -08:00
pcmcia remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
pnp PNP: add debug message for adding new device 2007-10-17 08:43:04 -07:00
power Merge git://git.infradead.org/battery-2.6 2007-10-22 19:20:52 -07:00
ps3 remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
rapidio
rtc rtc-ds1307 exports NVRAM 2007-11-14 18:45:36 -08:00
s390 [S390] Fix priority mistakes in drivers/s390/cio/cmf.c 2007-11-05 11:10:17 +01:00
sbus vfc_dev conversion to mutex: fallout 2007-10-20 15:04:06 -07:00
scsi PCI: Add Kconfig option to disable deprecated pci_find_* API 2007-11-05 13:35:17 -08:00
serial 8250_pnp: add support for "LG C1 EXPRESS DUAL" machines 2007-11-14 18:45:38 -08:00
sh superhyway: Handle device_register() retval properly. 2007-11-07 11:13:55 +09:00
sn
spi spi: fix error paths on txx9spi_probe 2007-11-14 18:45:39 -08:00
ssb ssb: Fix PCMCIA-host lowlevel bus access 2007-11-10 22:01:53 -08:00
tc lk201: remove obsolete driver 2007-10-17 08:42:57 -07:00
telephony telephony: phonedev panics if unregistering device not registered [Bug 9266] 2007-11-05 15:12:33 -08:00
uio
usb cleanup asm/scatterlist.h includes 2007-11-02 08:47:06 +01:00
video video/sis/: fix negative array index 2007-11-14 18:45:38 -08:00
virtio virtio: Force use of power-of-two for descriptor ring sizes 2007-11-12 13:59:40 +11:00
w1 W1: fix memset size error 2007-11-14 18:45:36 -08:00
watchdog Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog 2007-11-02 19:36:26 -07:00
xen Add missing newlines to some uses of dev_<level> messages 2007-10-18 14:37:28 -07:00
zorro Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
Kconfig Virtio interface 2007-10-23 15:49:54 +10:00
Makefile Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-23 16:37:29 -07:00