From: Fabio Estevam <fabio.estevam@nxp.com>
Date: Sun, 27 Aug 2017 16:30:38 +0000 (-0300)
Subject: [media] ov2640: Check the return value from clk_prepare_enable()
X-Git-Tag: v4.15-rc1~91^2~231
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c3d14780249814f200317cfed1e5d288aeefb528;p=thirdparty%2Fkernel%2Flinux.git

[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 e6cbe01bc4cf9..5f013c8cbdb5a 100644
--- 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);