[PATCH] drm/rcar-du: fix comment to rcar_du_group_get()

[Alexandra Diupina <adiupina@xxxxxxxxxxxxx>]

rcar_du_group_get() never returns a negative
error code (always returns 0), so change
the comment about returned value

Fixes: cb2025d2509f ("drm/rcar-du: Introduce CRTCs groups")
Signed-off-by: Alexandra Diupina <adiupina@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
index 2ccd2581f544..499d4e56c32d 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
@@ -200,7 +200,7 @@ static void rcar_du_group_setup(struct rcar_du_group *rgrp)
  *
  * This function must be called with the DRM mode_config lock held.
  *
- * Return 0 in case of success or a negative error code otherwise.
+ * Always return 0.
  */
 int rcar_du_group_get(struct rcar_du_group *rgrp)
 {
-- 
2.30.2