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| author | Arvind Yadav <arvind.yadav.cs@gmail.com> | 2017-08-07 13:15:19 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2017-08-21 22:20:44 +0530 |
| commit | 87c56dcba4573441b5cc4b42ecbb35188fee8f04 (patch) | |
| tree | 7e91022631e2795e84f17679a8587ba913ea0184 /drivers/dma/at_xdmac.c | |
| parent | 1edc85dc56690aeb490e8058b2515f277bdebd51 (diff) | |
| download | linux-87c56dcba4573441b5cc4b42ecbb35188fee8f04.tar.gz linux-87c56dcba4573441b5cc4b42ecbb35188fee8f04.tar.bz2 linux-87c56dcba4573441b5cc4b42ecbb35188fee8f04.zip | |
dmaengine: at_xdmac: Handle return value of clk_prepare_enable.
clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/at_xdmac.c')
| -rw-r--r-- | drivers/dma/at_xdmac.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c index 6a3cf9709370..c00e3923d7d8 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++) { |