media: rcar-isp: Release ISPCORE resources

v4l2_device_register() takes a reference to the parent device, but the
ISPCORE remove path never calls v4l2_device_unregister(). The reference
is therefore leaked whenever an ISPCORE is removed.

Probe failures after rppx1_create() also return without destroying the
RPPX1 object.

Unregister the V4L2 device and destroy the RPPX1 object on the
corresponding error paths, and unregister the V4L2 device during removal.
v4l2_device_unregister() also unregisters all attached subdevices, so it
replaces the narrower subdevice-only cleanup.

Signed-off-by: Linmao Li <lilinmao@kylinos.cn>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This commit is contained in:
Linmao Li 2026-08-04 18:24:30 +08:00 • committed by Sakari Ailus
commit ea76b4e6a3