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499ef7a5c4
linux/arch/arm/mach-tegra
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Stephen Warren 499ef7a5c4 ARM: tegra: Prevent requeuing in-progress DMA requests 
If a request already in the queue is passed to tegra_dma_enqueue_req,
tegra_dma_req.node->{next,prev} will end up pointing to itself instead
of at tegra_dma_channel.list, which is the way a the end-of-list
should be set up. When the DMA request completes and is list_del'd,
the list head will still point at it, yet the node's next/prev will
contain the list poison values. When the next DMA request completes,
a kernel panic will occur when those poison values are dereferenced.

This makes the DMA driver more robust in the face of buggy clients.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-19 14:35:52 -08:00
..
include/mach Merge branch 'tegra-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into outside-for-next 2011-02-19 14:35:16 -08:00
board-harmony-pcie.c tegra: harmony: enable PCI Express 2010-10-21 18:13:10 -07:00
board-harmony-pinmux.c [ARM] tegra: harmony: Add harmony board file 2010-08-05 14:57:02 -07:00
board-harmony.c arm: remove machine_desc.io_pg_offst and .phys_io 2010-10-20 00:27:46 -04:00
board-harmony.h [ARM] tegra: harmony: Add harmony board file 2010-08-05 14:57:02 -07:00
board-trimslice-pinmux.c ARM: tegra: add TrimSlice board 2011-02-10 18:36:51 -08:00
board-trimslice.c ARM: tegra: add TrimSlice board 2011-02-10 18:36:51 -08:00
board-trimslice.h ARM: tegra: add TrimSlice board 2011-02-10 18:36:51 -08:00
board.h ARM: tegra: Allow overriding arch_reset 2011-02-10 17:50:41 -08:00
clock.c ARM: 6483/1: arm & sh: factorised duplicated clkdev.c 2010-11-26 10:51:04 +00:00
clock.h ARM: 6483/1: arm & sh: factorised duplicated clkdev.c 2010-11-26 10:51:04 +00:00
common.c ARM: tegra: Use writel_relaxed in tegra_init_cache 2011-02-10 17:50:43 -08:00
cpu-tegra.c ARM: tegra: cpufreq: Disable cpufreq during suspend 2011-02-10 17:50:40 -08:00
dma.c ARM: tegra: Prevent requeuing in-progress DMA requests 2011-02-19 14:35:52 -08:00
fuse.c [ARM] tegra: Add support for reading fuses 2010-10-21 18:12:09 -07:00
fuse.h [ARM] tegra: Add support for reading fuses 2010-10-21 18:12:09 -07:00
gpio-names.h [ARM] tegra: add GPIO support 2010-08-05 14:57:02 -07:00
gpio.c ARM: tegra: Add prototypes for subsystem suspend functions 2011-02-09 21:57:01 -08:00
headsmp.S [ARM] tegra: SMP support 2010-08-05 14:57:01 -07:00
hotplug.c ARM: fix wrongly patched constants 2011-01-14 12:06:26 +00:00
io.c [ARM] tegra: update iomap 2010-10-21 18:11:24 -07:00
irq.c ARM: tegra: irq: Implement retrigger 2011-02-09 22:18:30 -08:00
Kconfig ARM: tegra: add TrimSlice board 2011-02-10 18:36:51 -08:00
legacy_irq.c ARM: tegra: irq: Add support for suspend wake sources 2011-02-09 22:18:21 -08:00
localtimer.c [ARM] tegra: SMP support 2010-08-05 14:57:01 -07:00
Makefile ARM: tegra: add TrimSlice board 2011-02-10 18:36:51 -08:00
Makefile.boot [ARM] tegra: initial tegra support 2010-08-05 14:51:42 -07:00
pcie.c tegra: add PCI Express support 2010-10-21 18:13:02 -07:00
pinmux-t2-tables.c ARM: tegra: pinmux: Add missing drive pingroups and fix suspend 2011-02-09 21:57:02 -08:00
pinmux.c [ARM] tegra: pinmux: add safe values, move tegra2, add suspend 2010-10-21 18:11:41 -07:00
platsmp.c Merge branch 'misc' into devel 2011-01-06 22:32:52 +00:00
powergate.c ARM: tegra: Add api to control internal powergating 2011-02-09 21:57:00 -08:00
tegra2_clocks.c ARM: tegra: clock: Suspend fixes, and add new clocks 2011-02-09 21:57:02 -08:00
tegra2_dvfs.c [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups 2010-10-21 18:12:19 -07:00
tegra2_dvfs.h [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups 2010-10-21 18:12:19 -07:00
timer.c ARM: tegra: timer: Add idle and suspend support to timers 2011-02-09 22:17:38 -08:00