dmaengine: coh901318: Fix a double-lock bug

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The function coh901318_alloc_chan_resources() calls spin_lock_irqsave()
before calling coh901318_config().
But coh901318_config() calls spin_lock_irqsave() again in its
definition, which may cause a double-lock bug.

Because coh901318_config() is only called by
coh901318_alloc_chan_resources(), the bug fix is to remove the
calls to spin-lock and -unlock functions in coh901318_config().

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Jia-Ju Bai 2018-11-06 11:33:48 +08:00 • committed by Vinod Koul

parent 651022382c

commit 627469e444

1 changed files with 0 additions and 4 deletions

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drivers/dma/coh901318.c

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