spi/s3c64xx: Check that clock enables succeed on runtime resume

Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 2e267ce9dc19a2b99e97c9165b6be470ff8847c3..dd5ed13436e5068fe5f1990f72a05eca0f18fabb 100644 (file)
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1524,9 +1524,17 @@ static int s3c64xx_spi_runtime_resume(struct device *dev)
 {
        struct spi_master *master = dev_get_drvdata(dev);
        struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
+       int ret;
 
-       clk_prepare_enable(sdd->src_clk);
-       clk_prepare_enable(sdd->clk);
+       ret = clk_prepare_enable(sdd->src_clk);
+       if (ret != 0)
+               return ret;
+
+       ret = clk_prepare_enable(sdd->clk);
+       if (ret != 0) {
+               clk_disable_unprepare(sdd->src_clk);
+               return ret;
+       }
 
        return 0;
 }