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Subject[PATCH 2/2] dmaengine: at_xdmac: Handle return value of clk_prepare_enable.
Date
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
drivers/dma/at_xdmac.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 6a3cf97..c00e392 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -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++) {
--
1.9.1
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