[PATCH 3/4] dmaengine: mediatek: use GFP_NOWAIT instead of GFP_ATOMIC in prep_dma

[Guillaume Ranquet]

As recommended by the doc in:
Documentation/drivers-api/dmaengine/provider.rst

Use GFP_NOWAIT to not deplete the emergency pool.

Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>

diff --git a/drivers/dma/mediatek/mtk-uart-apdma.c
b/drivers/dma/mediatek/mtk-uart-apdma.c
index 249cabddb7ee..4711bec04b98 100644
--- a/drivers/dma/mediatek/mtk-uart-apdma.c
+++ b/drivers/dma/mediatek/mtk-uart-apdma.c
@@ -349,7 +349,7 @@ static struct dma_async_tx_descriptor
*mtk_uart_apdma_prep_slave_sg
 		return NULL;

 	/* Now allocate and setup the descriptor */
-	d = kzalloc(sizeof(*d), GFP_ATOMIC);
+	d = kzalloc(sizeof(*d), GFP_NOWAIT);
 	if (!d)
 		return NULL;

-- 
2.26.3