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| author | Lad, Prabhakar <prabhakar.csengg@gmail.com> | 2014-01-17 06:22:47 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-02-24 13:14:12 -0300 |
| commit | 79019190a4c3a082c739cf7cc73a040c48b333bb (patch) | |
| tree | dc7b7838ce64e013a88f93a74049b36e1c6efa04 /drivers/media/i2c/mt9v032.c | |
| parent | ee2d16d7b3c95a65ed0434841568bd3f82712338 (diff) | |
| download | linux-stable-79019190a4c3a082c739cf7cc73a040c48b333bb.tar.gz linux-stable-79019190a4c3a082c739cf7cc73a040c48b333bb.tar.bz2 linux-stable-79019190a4c3a082c739cf7cc73a040c48b333bb.zip | |
[media] mt9v032: Check return value of clk_prepare_enable/clk_set_rate
clk_set_rate(), clk_prepare_enable() functions can fail, so check the return
values to avoid surprises.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/i2c/mt9v032.c')
| -rw-r--r-- | drivers/media/i2c/mt9v032.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c index 36c504b78f2c..40172b8d8ea2 100644 --- a/drivers/media/i2c/mt9v032.c +++ b/drivers/media/i2c/mt9v032.c @@ -317,8 +317,14 @@ static int mt9v032_power_on(struct mt9v032 *mt9v032) struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); int ret; - clk_set_rate(mt9v032->clk, mt9v032->sysclk); - clk_prepare_enable(mt9v032->clk); + ret = clk_set_rate(mt9v032->clk, mt9v032->sysclk); + if (ret < 0) + return ret; + + ret = clk_prepare_enable(mt9v032->clk); + if (ret) + return ret; + udelay(1); /* Reset the chip and stop data read out */ |