[PATCH v3 10/13] media: ipu6: Obtain unique source pad from remote sub-device

[Sakari Ailus <sakari.ailus@linux.intel.com>]

Obtain unique source pad from a remote sub-device, instead of the first
one. This means that only one link may be active at stream start. There's
no functional change in practice, unless multiple CSI-2 transmitters are
directly connected to the receiver.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/pci/intel/ipu6/ipu6-isys-video.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-video.c b/drivers/media/pci/intel/ipu6/ipu6-isys-video.c
index 919b77107cef..fb319d623a11 100644
--- a/drivers/media/pci/intel/ipu6/ipu6-isys-video.c
+++ b/drivers/media/pci/intel/ipu6/ipu6-isys-video.c
@@ -1205,10 +1205,10 @@ int ipu6_isys_setup_video(struct ipu6_isys_video *av,
 
 	remote_sd = media_entity_to_v4l2_subdev(remote_pad->entity);
 	asd = to_ipu6_isys_subdev(remote_sd);
-	source_pad = media_pad_remote_pad_first(&remote_pad->entity->pads[0]);
-	if (!source_pad) {
+	source_pad = media_pad_remote_pad_unique(&remote_pad->entity->pads[0]);
+	if (IS_ERR(source_pad)) {
 		dev_dbg(dev, "No external source entity\n");
-		return -ENODEV;
+		return PTR_ERR(source_pad);
 	}
 
 	*source_entity = source_pad->entity;
-- 
2.47.3