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Matt Porter 069552777a ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830 
This adds additional error checking to the private edma api implementation
to catch the case where the edma_alloc_slot() has an invalid controller
parameter. The edma dmaengine wrapper driver relies on this condition
being handled in order to avoid setting up a second edma dmaengine
instance on DA830.

Verfied using a DA850 with the second EDMA controller platform instance
removed to simulate a DA830 which only has a single EDMA controller.

Reported-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Matt Porter <mporter@ti.com>
Cc: stable@vger.kernel.org # v3.7.x+
Tested-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-03-12 17:10:46 +05:30
..
alpha arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
arc ARC: split elf.h into uapi and export it for userspace 2013-02-27 20:00:26 +05:30
arm ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830 2013-03-12 17:10:46 +05:30
arm64 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-03-02 08:34:06 -08:00
avr32 arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
blackfin Merge branch 'timer/cleanup' into late/mvebu2 2013-02-28 18:54:15 +01:00
c6x Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
cris Merge branch 'timer/cleanup' into late/mvebu2 2013-02-28 18:54:15 +01:00
frv arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
h8300 arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
hexagon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
ia64 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
m32r Merge branch 'timer/cleanup' into late/mvebu2 2013-02-28 18:54:15 +01:00
m68k Merge branch 'timer/cleanup' into late/mvebu2 2013-02-28 18:54:15 +01:00
metag ImgTec Meta architecture changes for v3.9-rc1 2013-03-03 12:06:09 -08:00
microblaze arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
mips Merge git://www.linux-watchdog.org/linux-watchdog 2013-03-03 10:23:29 -08:00
mn10300 arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
openrisc arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
parisc Merge branch 'fixes-for-3.9-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2013-03-03 12:57:38 -08:00
powerpc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-03-02 08:34:06 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-03-03 13:23:03 -08:00
score arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
sh hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sparc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-03-02 08:34:06 -08:00
tile arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
um Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-02-23 18:50:11 -08:00
unicore32 arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
x86 Bug-fixes: 2013-03-03 14:22:53 -08:00
xtensa arch Kconfig: centralise CONFIG_ARCH_NO_VIRT_TO_BUS 2013-02-27 19:10:23 -08:00
.gitignore
Kconfig ImgTec Meta architecture changes for v3.9-rc1 2013-03-03 12:06:09 -08:00