[media] ov2640: Check the return value from clk_prepare_enable()

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

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/i2c/ov2640.c b/drivers/media/i2c/ov2640.c
index e6cbe01..5f013c8 100644 (file)
--- a/drivers/media/i2c/ov2640.c
+++ b/drivers/media/i2c/ov2640.c
@@ -1108,7 +1108,9 @@ static int ov2640_probe(struct i2c_client *client,
                priv->clk = devm_clk_get(&client->dev, "xvclk");
                if (IS_ERR(priv->clk))
                        return PTR_ERR(priv->clk);
-               clk_prepare_enable(priv->clk);
+               ret = clk_prepare_enable(priv->clk);
+               if (ret)
+                       return ret;
        }
 
        ret = ov2640_probe_dt(client, priv);