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crypto: img-hash - Handle return value of clk_prepare_enable

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Here, Clock enable can failed. So adding an error check for
clk_prepare_enable.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Arvind Yadav 2017-05-16 13:57:41 +05:30 committed by Herbert Xu
parent 986130bf37
commit 5f052c9c63
1 changed files with 10 additions and 2 deletions
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12
drivers/crypto/img-hash.c
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@ -1088,9 +1088,17 @@ static int img_hash_suspend(struct device *dev)
static int img_hash_resume(struct device *dev)
{
struct img_hash_dev *hdev = dev_get_drvdata(dev);
int ret;
clk_prepare_enable(hdev->hash_clk);
clk_prepare_enable(hdev->sys_clk);
ret = clk_prepare_enable(hdev->hash_clk);
if (ret)
return ret;
ret = clk_prepare_enable(hdev->sys_clk);
if (ret) {
clk_disable_unprepare(hdev->hash_clk);
return ret;
}
return 0;
}