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media: i2c: ov5670: Fix PIXEL_RATE minimum value 

The driver currently reports a single supported value for
V4L2_CID_PIXEL_RATE and initializes the control's minimum value to 0,
which is very risky, as userspace might accidentally use it as divider
when calculating the time duration of a line.

Fix this by using as minimum the only supported value when registering
the control.

Fixes: 5de35c9b8d ("media: i2c: Add Omnivision OV5670 5M sensor support")
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Jacopo Mondi 2020-12-21 18:52:20 +01:00 committed by Mauro Carvalho Chehab
parent 2225cf4492
commit dc1eb7c9c2
1 changed files with 2 additions and 1 deletions
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3
drivers/media/i2c/ov5670.c
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@ -2084,7 +2084,8 @@ static int ov5670_init_controls(struct ov5670 *ov5670)
/* By default, V4L2_CID_PIXEL_RATE is read only */
ov5670->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
V4L2_CID_PIXEL_RATE, 0,
V4L2_CID_PIXEL_RATE,
link_freq_configs[0].pixel_rate,
link_freq_configs[0].pixel_rate,
1,
link_freq_configs[0].pixel_rate);