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media: ov7670: 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: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Fabio Estevam 2017-07-18 23:34:19 -04:00 committed by Mauro Carvalho Chehab
parent 011dfab805
commit 1fc86ad052
1 changed files with 3 additions and 1 deletions
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4
drivers/media/i2c/ov7670.c
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@ -1615,7 +1615,9 @@ static int ov7670_probe(struct i2c_client *client,
info->clk = devm_clk_get(&client->dev, "xclk");
if (IS_ERR(info->clk))
return PTR_ERR(info->clk);
clk_prepare_enable(info->clk);
ret = clk_prepare_enable(info->clk);
if (ret)
return ret;
ret = ov7670_init_gpio(client, info);
if (ret)