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>

diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index c639c60..bc31fe8 100644 (file)
--- 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);
 }