dmaengine: ptdma: fix concurrency issue with multiple dma transfer

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The command should be submitted only if the engine is idle,
for this, the next available descriptor is checked and set the flag
to false in case the descriptor is non-empty.

Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com>
Link: https://lore.kernel.org/r/1643814880-3882-2-git-send-email-Sanju.Mehta@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Sanjay R Mehta 2022-02-02 09:14:39 -06:00 • committed by Vinod Koul

parent 614c8beca7

commit 6fa7e0e836

1 changed files with 6 additions and 1 deletions

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7

drivers/dma/ptdma/ptdma-dmaengine.c

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