drm/rcar-du: Handle encoder initialization failures

The rcar_du_encoder_init() function can fail and return an error code.
Don't ignore it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index fbeabd9a281f..a87edfac111f 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -248,7 +248,10 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
                         continue;
                 }
 
-                rcar_du_encoder_init(rcdu, pdata->type, pdata->output, pdata);
+                ret = rcar_du_encoder_init(rcdu, pdata->type, pdata->output,
+                                           pdata);
+                if (ret < 0)
+                        return ret;
         }
 
         /* Set the possible CRTCs and possible clones. There's always at least