media: ov7670: Return the real error code

When devm_clk_get() fails the real error code should be propagated,
instead of always returning -EPROBE_DEFER.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/i2c/ov7670.c

@@ -1614,7 +1614,7 @@ static int ov7670_probe(struct i2c_client *client,
 
 	info->clk = devm_clk_get(&client->dev, "xclk");
 	if (IS_ERR(info->clk))
-		return -EPROBE_DEFER;
+		return PTR_ERR(info->clk);
 	clk_prepare_enable(info->clk);
 
 	ret = ov7670_init_gpio(client, info);