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dmaengine: at_xdmac: Handle return value of clk_prepare_enable.

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clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <[email protected]>
Acked-by: Ludovic Desroches <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
This commit is contained in:
Arvind Yadav
2017-08-21 22:20:44 +05:30
committed by Vinod Koul
parent 1edc85dc56
commit 87c56dcba4
1 changed files with 4 additions and 1 deletions
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drivers/dma/at_xdmac.c
+4 -1
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@@ -1883,8 +1883,11 @@ static int atmel_xdmac_resume(struct device *dev)
struct at_xdmac_chan *atchan;
struct dma_chan *chan, *_chan;
int i;
int ret;
clk_prepare_enable(atxdmac->clk);
ret = clk_prepare_enable(atxdmac->clk);
if (ret)
return ret;
/* Clear pending interrupts. */
for (i = 0; i < atxdmac->dma.chancnt; i++) {