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authorDave Jiang2022-09-19 09:58:42 -0700
committerVinod Koul2022-09-29 22:46:08 +0530
commit898ec89dbb55b8294695ad71694a0684e62b2a73 (patch)
tree5c53f5c5c5f9657fadd97ae2b2497336f41b822e /Documentation/fb/sm712fb.rst
parentb9d2140c3badf4107973ad77c5a0ec3075705c85 (diff)
dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup()
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: 3372de5813e4 ("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>
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