[PATCH v2 2/4] drm: zynqmp: Check property creation status

[Sean Anderson <sean.anderson@linux.dev>]

Make sure to return an error in the event that we can't create our
properties.

Fixes: 650f12042b85 ("drm: xlnx: zynqmp_dpsub: Add global alpha support")
Fixes: 8c772f0b2b8e ("drm: xlnx: zynqmp_dpsub: Expose plane ordering to userspace")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Anatoliy Klymenko <anatoliy.klymenko@amd.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
---

(no changes since v1)

 drivers/gpu/drm/xlnx/zynqmp_kms.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/xlnx/zynqmp_kms.c b/drivers/gpu/drm/xlnx/zynqmp_kms.c
index 02f3a7d78cf8..816bea4ea986 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_kms.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_kms.c
@@ -175,9 +175,15 @@ static int zynqmp_dpsub_create_planes(struct zynqmp_dpsub *dpsub)
 
 		drm_plane_helper_add(plane, &zynqmp_dpsub_plane_helper_funcs);
 
-		drm_plane_create_zpos_immutable_property(plane, i);
-		if (i == ZYNQMP_DPSUB_LAYER_GFX)
-			drm_plane_create_alpha_property(plane);
+		ret = drm_plane_create_zpos_immutable_property(plane, i);
+		if (ret)
+			return ret;
+
+		if (i == ZYNQMP_DPSUB_LAYER_GFX) {
+			ret = drm_plane_create_alpha_property(plane);
+			if (ret)
+				return ret;
+		}
 	}
 
 	return 0;
-- 
2.35.1.1320.gc452695387.dirty