[PATCH 2/2] [media] exynos4-is: FIMC port parse should fail if there's no endpoint

[Javier Martinez Canillas]

The fimc_md_parse_port_node() function return 0 if an endpoint node is
not found but according to Documentation/devicetree/bindings/graph.txt,
a port must always have at least one enpoint.

So return an -EINVAL errno code to the caller instead, so it knows that
the port node parse failed due an invalid Device Tree description.

Signed-off-by: Javier Martinez Canillas <javier at osg.samsung.com>

---

 drivers/media/platform/exynos4-is/media-dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index feb521f28e14..06f3d75c9a0e 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -394,7 +394,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 	/* Assume here a port node can have only one endpoint node. */
 	ep = of_get_next_child(port, NULL);
 	if (!ep)
-		return 0;
+		return -EINVAL;
 
 	ret = v4l2_of_parse_endpoint(ep, &endpoint);
 	if (ret) {
-- 
2.5.0