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>
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index d4cabd6..754c1f5 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -296,7 +296,7 @@
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 @@
}
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;