diff options
| author | Arvind Yadav <arvind.yadav.cs@gmail.com> | 2017-05-16 11:27:41 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-05-23 07:52:03 +0300 |
| commit | 5f052c9c631d360d6ec6202714b9d6529a21117a (patch) | |
| tree | c03d96231c92739172a4853253f162d4964b7c9e /drivers | |
| parent | 986130bf3701e9875a820e06ed5c6ae0a851900b (diff) | |
| download | linux-5f052c9c631d360d6ec6202714b9d6529a21117a.tar.xz | |
crypto: img-hash - Handle return value of clk_prepare_enable
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/img-hash.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c index 9b07f3d88feb..0c6a917a9ab8 100644 --- a/drivers/crypto/img-hash.c +++ b/drivers/crypto/img-hash.c @@ -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; } |