media: staging: rkisp1: initialize buffer lists only on probe

The buffer lists of stats and params entities
are initialized in queue_setup callback with
'INIT_LIST_HEAD'. It is enough to initialize
the lists only upon registration.
For the stats entity the list is already
initialize upon registration.
Signed-off-by: NDafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: NHelen Koike <helen.koike@collabora.com>
Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/rkisp1/rkisp1-params.c

@@ -1420,8 +1420,6 @@ static int rkisp1_params_vb2_queue_setup(struct vb2_queue *vq,
 					 unsigned int sizes[],
 					 struct device *alloc_devs[])
 {
-	struct rkisp1_params *params = vq->drv_priv;
-
 	*num_buffers = clamp_t(u32, *num_buffers,
 			       RKISP1_ISP_PARAMS_REQ_BUFS_MIN,
 			       RKISP1_ISP_PARAMS_REQ_BUFS_MAX);
@@ -1430,7 +1428,6 @@ static int rkisp1_params_vb2_queue_setup(struct vb2_queue *vq,
 
 	sizes[0] = sizeof(struct rkisp1_params_cfg);
 
-	INIT_LIST_HEAD(&params->params);
 	return 0;
 }
 
@@ -1545,6 +1542,7 @@ int rkisp1_params_register(struct rkisp1_device *rkisp1)
 
 	params->rkisp1 = rkisp1;
 	mutex_init(&node->vlock);
+	INIT_LIST_HEAD(&params->params);
 	spin_lock_init(&params->config_lock);
 
 	strscpy(vdev->name, RKISP1_PARAMS_DEV_NAME, sizeof(vdev->name));

drivers/staging/media/rkisp1/rkisp1-stats.c

@@ -94,8 +94,6 @@ static int rkisp1_stats_vb2_queue_setup(struct vb2_queue *vq,
 					unsigned int sizes[],
 					struct device *alloc_devs[])
 {
-	struct rkisp1_stats *stats = vq->drv_priv;
-
 	*num_planes = 1;
 
 	*num_buffers = clamp_t(u32, *num_buffers, RKISP1_ISP_STATS_REQ_BUFS_MIN,
@@ -103,8 +101,6 @@ static int rkisp1_stats_vb2_queue_setup(struct vb2_queue *vq,
 
 	sizes[0] = sizeof(struct rkisp1_stat_buffer);
 
-	INIT_LIST_HEAD(&stats->stat);
-
 	return 0;
 }