media: vimc: use new release op

Use the new v4l2_subdev_internal_ops release op to free the
subdev memory only when the last user closed the file handle.

Move v4l2_device_unregister_subdev() to the end of the
vimc_ent_sd_unregister() function since now the unregister_subdev()
call may free the vimc_ent_device struct which is used after the
unregister_subdev() call. So this now has to be done last.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h
index 84539430b5e7..c439cbf2f030 100644
--- a/drivers/media/platform/vimc/vimc-common.h
+++ b/drivers/media/platform/vimc/vimc-common.h
@@ -187,6 +187,7 @@ const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat);
  * @function:   media entity function defined by MEDIA_ENT_F_* macros
  * @num_pads:   number of pads to initialize
  * @pads_flag:  flags to use in each pad
+ * @sd_int_ops: pointer to &struct v4l2_subdev_internal_ops
  * @sd_ops:     pointer to &struct v4l2_subdev_ops.
  *
  * Helper function initialize and register the struct vimc_ent_device and struct
@@ -199,6 +200,7 @@ int vimc_ent_sd_register(struct vimc_ent_device *ved,
                          u32 function,
                          u16 num_pads,
                          const unsigned long *pads_flag,
+                         const struct v4l2_subdev_internal_ops *sd_int_ops,
                          const struct v4l2_subdev_ops *sd_ops);
 
 /**