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authorArvind Yadav <arvind.yadav.cs@gmail.com>2017-05-22 16:01:48 +0530
committerVinod Koul <vinod.koul@intel.com>2017-05-24 09:55:17 +0530
commit702fce05f5ad0e2af2c00d5ef41356ffdd4a3a56 (patch)
tree77be2870551d447de1ae0fe606f7c21f6596bf6f /drivers/dma/dw
parent14bebd01c5f5306c804bcb78d008df3a149dd0b3 (diff)
downloadlinux-702fce05f5ad0e2af2c00d5ef41356ffdd4a3a56.tar.gz
dmaengine: DW DMAC: 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: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/dw')
-rw-r--r--drivers/dma/dw/platform.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index c639c60b825a..bc31fe802061 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -306,8 +306,12 @@ static int dw_resume_early(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct dw_dma_chip *chip = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = clk_prepare_enable(chip->clk);
+ if (ret)
+ return ret;
- clk_prepare_enable(chip->clk);
return dw_dma_enable(chip);
}