[PATCH 1/3] drm: zynqmp: Check property creation status

[Sean Anderson]

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.ander...@linux.dev>
---

 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 2bee0a2275ed..c80a2d4034f3 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_kms.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_kms.c
@@ -174,9 +174,15 @@ 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