openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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

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>
This commit is contained in:
Lucas Stach 2018-11-06 03:40:37 +00:00 committed by Vinod Koul
parent b8603d2a57
commit 64068853bc
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/dma/imx-sdma.c
View File

@ -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;