spi: spi-fsl-dspi: Check clk_prepare_enable() error

clk_prepare_enable() may fail, so we should better check its
return value and propagate it in the case of failure.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index d57baf6c2d1e..95d8b929cd52 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -624,10 +624,13 @@ static int dspi_resume(struct device *dev)
 {
         struct spi_master *master = dev_get_drvdata(dev);
         struct fsl_dspi *dspi = spi_master_get_devdata(master);
+        int ret;
 
         pinctrl_pm_select_default_state(dev);
 
-        clk_prepare_enable(dspi->clk);
+        ret = clk_prepare_enable(dspi->clk);
+        if (ret)
+                return ret;
         spi_master_resume(master);
 
         return 0;
@@ -726,7 +729,9 @@ static int dspi_probe(struct platform_device *pdev)
                 dev_err(&pdev->dev, "unable to get clock\n");
                 goto out_master_put;
         }
-        clk_prepare_enable(dspi->clk);
+        ret = clk_prepare_enable(dspi->clk);
+        if (ret)
+                goto out_master_put;
 
         master->max_speed_hz =
                 clk_get_rate(dspi->clk) / dspi->devtype_data->max_clock_factor;