dmaengine: tegra-apb: Prevent race conditions on channel's freeing

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It's incorrect to check the channel's "busy" state without taking a lock.
That shouldn't cause any real troubles, nevertheless it's always better
not to have any race conditions in the code.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200209163356.6439-5-digetx@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Dmitry Osipenko 2020-02-09 19:33:41 +03:00 • committed by Vinod Koul

parent dda5e35a77

commit 8e84172e37

1 changed files with 1 additions and 2 deletions

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drivers/dma/tegra20-apb-dma.c

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