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dmaengine: imx-sdma: use GFP_NOWAIT for dma descriptor allocations

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commit 64068853bc77786d1a28abb4087d6a3e93aedbe2 upstream.

DMA buffer descriptors aren't allocated from atomic context, so they
can use the less heavyweigth GFP_NOWAIT.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lucas Stach 2018-11-06 03:40:37 +00:00 committed by Greg Kroah-Hartman
parent 9063f5a99e
commit 374f384bc6
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/imx-sdma.c
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@ -1214,7 +1214,7 @@ static int sdma_alloc_bd(struct sdma_desc *desc)
int ret = 0;
desc->bd = dma_zalloc_coherent(NULL, bd_size, &desc->bd_phys,
GFP_ATOMIC);
GFP_NOWAIT);
if (!desc->bd) {
ret = -ENOMEM;
goto out;