dmaengine: mv_xor_v2: do not use descriptors not acked by async_tx

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Descriptors that have not been acknowledged by the async_tx layer
should not be re-used, so this commit adjusts the implementation of
mv_xor_v2_prep_sw_desc() to skip descriptors for which
async_tx_test_ack() is false.

Fixes: 19a340b1a8 ("dmaengine: mv_xor_v2: new driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

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Thomas Petazzoni 2017-05-05 11:57:46 +02:00 • committed by Vinod Koul

parent 2aab4e1815

commit bc473da1ed

1 changed files with 22 additions and 10 deletions

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drivers/dma/mv_xor_v2.c

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