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Subject: media: i2c: ov5670: Fix PIXEL_RATE minimum value
Author:  Jacopo Mondi <[email protected]>
Date:    Mon Dec 21 18:52:20 2020 +0100

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: 5de35c9b8dcd1 ("media: i2c: Add Omnivision OV5670 5M sensor support")
Signed-off-by: Jacopo Mondi <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

 drivers/media/i2c/ov5670.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

---

diff --git a/drivers/media/i2c/ov5670.c b/drivers/media/i2c/ov5670.c
index 148fd4e05029..866c8c2e8f59 100644
--- a/drivers/media/i2c/ov5670.c
+++ b/drivers/media/i2c/ov5670.c
@@ -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);

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