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media: ov5640: fix spurious streamon failures 

Time to time, stream on is failing with a strange positive error.
Error code is returned erroneously by ov5640_set_ctrl_exposure()
due to ov5640_get_vts() return value wrongly treated as error.
Fix this by forcing ret to 0 after ov5640_get_vts() success call,
in order that ret is set to success for rest of code sequence.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hugues Fruchet 2018-01-22 05:06:40 -05:00 committed by Mauro Carvalho Chehab
parent 401f69308f
commit 6146fde355
1 changed files with 1 additions and 0 deletions
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drivers/media/i2c/ov5640.c
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@ -2057,6 +2057,7 @@ static int ov5640_set_ctrl_exposure(struct ov5640_dev *sensor, int exp)
if (ret < 0)
return ret;
max_exp += ret;
ret = 0;
if (ctrls->exposure->val < max_exp)
ret = ov5640_set_exposure(sensor, ctrls->exposure->val);