media: omap3isp: Drop custom .unsubscribe_event() handler

The ccdc_unsubscribe_event() and omap3isp_stat_unsubscribe_event()
functions simply call v4l2_event_unsubscribe(), forwarding their
arguments. Replace them with the v4l2_event_subdev_unsubscribe() helper
that performs exactly the same operation.

Signed-off-by: Laurent Pinchart <[e-mail]>
Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/platform/ti/omap3isp/ispccdc.c

···
 	return v4l2_event_subscribe(fh, sub, OMAP3ISP_CCDC_NEVENTS, NULL);
 }
 
-static int ccdc_unsubscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
-				  struct v4l2_event_subscription *sub)
-{
-	return v4l2_event_unsubscribe(fh, sub);
-}
-
 /*
  * ccdc_set_stream - Enable/Disable streaming on the CCDC module
  * @sd: ISP CCDC V4L2 subdevice
···
 static const struct v4l2_subdev_core_ops ccdc_v4l2_core_ops = {
 	.ioctl = ccdc_ioctl,
 	.subscribe_event = ccdc_subscribe_event,
-	.unsubscribe_event = ccdc_unsubscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
 };
 
 /* V4L2 subdev video operations */

drivers/media/platform/ti/omap3isp/isph3a_aewb.c

···
 static const struct v4l2_subdev_core_ops h3a_aewb_subdev_core_ops = {
 	.ioctl = h3a_aewb_ioctl,
 	.subscribe_event = omap3isp_stat_subscribe_event,
-	.unsubscribe_event = omap3isp_stat_unsubscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
 };
 
 static const struct v4l2_subdev_video_ops h3a_aewb_subdev_video_ops = {

drivers/media/platform/ti/omap3isp/isph3a_af.c

···
 static const struct v4l2_subdev_core_ops h3a_af_subdev_core_ops = {
 	.ioctl = h3a_af_ioctl,
 	.subscribe_event = omap3isp_stat_subscribe_event,
-	.unsubscribe_event = omap3isp_stat_unsubscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
 };
 
 static const struct v4l2_subdev_video_ops h3a_af_subdev_video_ops = {

drivers/media/platform/ti/omap3isp/isphist.c

···
 static const struct v4l2_subdev_core_ops hist_subdev_core_ops = {
 	.ioctl = hist_ioctl,
 	.subscribe_event = omap3isp_stat_subscribe_event,
-	.unsubscribe_event = omap3isp_stat_unsubscribe_event,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
 };
 
 static const struct v4l2_subdev_video_ops hist_subdev_video_ops = {

drivers/media/platform/ti/omap3isp/ispstat.c

···
 	return v4l2_event_subscribe(fh, sub, STAT_NEVENTS, NULL);
 }
 
-int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
-				    struct v4l2_fh *fh,
-				    struct v4l2_event_subscription *sub)
-{
-	return v4l2_event_unsubscribe(fh, sub);
-}
-
 void omap3isp_stat_unregister_entities(struct ispstat *stat)
 {
 	v4l2_device_unregister_subdev(&stat->subdev);

drivers/media/platform/ti/omap3isp/ispstat.h

···
 int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev,
 				  struct v4l2_fh *fh,
 				  struct v4l2_event_subscription *sub);
-int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
-				    struct v4l2_fh *fh,
-				    struct v4l2_event_subscription *sub);
 int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable);
 
 int omap3isp_stat_busy(struct ispstat *stat);