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dmaengine: tegra-apb: Update driver to use GFP_NOWAIT 

The tegra20-apb-dma driver currently uses the flag GFP_ATOMIC when
allocating memory for structures used in conjunction with the DMA
descriptors. It is preferred that dmaengine drivers use GFP_NOWAIT
instead and so the emergency memory pool will not be used by these
drivers.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Jon Hunter 2015-11-13 16:39:42 +00:00 committed by Vinod Koul
parent 4aad5be040
commit 8fe9739bc3
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/tegra20-apb-dma.c
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@ -296,7 +296,7 @@ static struct tegra_dma_desc *tegra_dma_desc_get(
spin_unlock_irqrestore(&tdc->lock, flags);
/* Allocate DMA desc */
dma_desc = kzalloc(sizeof(*dma_desc), GFP_ATOMIC);
dma_desc = kzalloc(sizeof(*dma_desc), GFP_NOWAIT);
if (!dma_desc) {
dev_err(tdc2dev(tdc), "dma_desc alloc failed\n");
return NULL;
@ -336,7 +336,7 @@ static struct tegra_dma_sg_req *tegra_dma_sg_req_get(
}
spin_unlock_irqrestore(&tdc->lock, flags);
sg_req = kzalloc(sizeof(struct tegra_dma_sg_req), GFP_ATOMIC);
sg_req = kzalloc(sizeof(struct tegra_dma_sg_req), GFP_NOWAIT);
if (!sg_req)
dev_err(tdc2dev(tdc), "sg_req alloc failed\n");
return sg_req;