Dave Jiang 57f66534a4 dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup() ...

[ Upstream commit 898ec89dbb ]

User reports observing timer event report channel halted but no error
observed in CHANERR register. The driver finished self-test and released
channel resources. Debug shows that __cleanup() can call
mod_timer() after the timer has been deleted and thus resurrect the
timer. While harmless, it causes suprious error message to be emitted.
Use mod_timer_pending() call to prevent deleted timer from being
resurrected.

Fixes: 3372de5813 ("dmaengine: ioatdma: removal of dma_v3.c and relevant ioat3 references")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166360672197.3851724.17040290563764838369.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-10-26 12:35:18 +02:00

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dca.c

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dma.c

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dma.h

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hw.h

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init.c

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Makefile

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prep.c

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registers.h

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sysfs.c

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