dmaengine: idxd: fix cdev locking for open and release

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add the wq lock in cdev open and release call. This fixes
race conditions observed in the open and close routines.

Fixes: 42d279f913 ("dmaengine: idxd: add char driver to expose submission portal to userland")
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/159285824892.64944.2905413694915141834.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Nikhil Rao 2020-06-22 13:38:34 -07:00 • committed by Vinod Koul

parent 2f57b8d576

commit 66983bc18f

1 changed files with 16 additions and 3 deletions

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drivers/dma/idxd/cdev.c

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