media: i2c: ov5647: Initialize subdev before controls

[ Upstream commit eee13cbcca ]

In ov5647_init_controls() we call v4l2_get_subdevdata, but it is
initialized by v4l2_i2c_subdev_init() in the probe, which currently
happens after init_controls(). This can result in a segfault if the
error condition is hit, and we try to access i2c_client, so fix the
order.

Fixes: 4974c2f19f ("media: ov5647: Support gain, exposure and AWB controls")
Cc: stable@vger.kernel.org
Suggested-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jai Luthra 2025-12-22 13:45:25 +05:30 • committed by Sasha Levin
commit 2dedda97a6