[10/19] v4l: xilinx: Use the new media_entity_graph_walk_start() interface
diff mbox

Message ID 1445900510-1398-11-git-send-email-sakari.ailus@iki.fi
State New
Headers show

Commit Message

Sakari Ailus Oct. 26, 2015, 11:01 p.m. UTC
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/platform/xilinx/xilinx-dma.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Patch
diff mbox

diff --git a/drivers/media/platform/xilinx/xilinx-dma.c b/drivers/media/platform/xilinx/xilinx-dma.c
index bc244a0..0a19824 100644
--- a/drivers/media/platform/xilinx/xilinx-dma.c
+++ b/drivers/media/platform/xilinx/xilinx-dma.c
@@ -182,10 +182,17 @@  static int xvip_pipeline_validate(struct xvip_pipeline *pipe,
 	struct media_device *mdev = entity->graph_obj.mdev;
 	unsigned int num_inputs = 0;
 	unsigned int num_outputs = 0;
+	int ret;
 
 	mutex_lock(&mdev->graph_mutex);
 
 	/* Walk the graph to locate the video nodes. */
+	ret = media_entity_graph_walk_init(&graph, entity->graph_obj.mdev);
+	if (ret) {
+		mutex_unlock(&mdev->graph_mutex);
+		return ret;
+	}
+
 	media_entity_graph_walk_start(&graph, entity);
 
 	while ((entity = media_entity_graph_walk_next(&graph))) {
@@ -206,6 +213,8 @@  static int xvip_pipeline_validate(struct xvip_pipeline *pipe,
 
 	mutex_unlock(&mdev->graph_mutex);
 
+	media_entity_graph_walk_cleanup(&graph);
+
 	/* We need exactly one output and zero or one input. */
 	if (num_outputs != 1 || num_inputs > 1)
 		return -EPIPE;