[PATCH 5.15 068/110] drm/kmb: Fix for build errors with Warray-bounds

[Greg Kroah-Hartman]

From: Anitha Chrisanthus <anitha.chrisanthus@xxxxxxxxx>

commit 43f2517955875be5d96b641fba33d73097fe3cd9 upstream.

This fixes the following build error

drivers/gpu/drm/kmb/kmb_plane.c: In function 'kmb_plane_atomic_disable':
drivers/gpu/drm/kmb/kmb_plane.c:165:34: error: array subscript 3 is above array bounds of 'struct layer_status[2]' [-Werror=array-bounds]
  165 |                 kmb->plane_status[plane_id].ctrl =
  LCD_CTRL_GL2_ENABLE;
  |                 ~~~~~~~~~~~~~~~~~^~~~~~~~~~
  In file included from drivers/gpu/drm/kmb/kmb_plane.c:17:
  drivers/gpu/drm/kmb/kmb_drv.h:61:41: note: while referencing 'plane_status'
  61 |         struct layer_status  plane_status[KMB_MAX_PLANES];
  |                                         ^~~~~~~~~~~~
  drivers/gpu/drm/kmb/kmb_plane.c:162:34: error: array subscript 2 is above array bounds of 'struct layer_status[2]' [-Werror=array-bounds]
  162 |  kmb->plane_status[plane_id].ctrl =  LCD_CTRL_GL1_ENABLE;
  |                 ~~~~~~~~~~~~~~~~~^~~~~~~~~~
  In file included from
  drivers/gpu/drm/kmb/kmb_plane.c:17:
  drivers/gpu/drm/kmb/kmb_drv.h:61:41: note: while referencing 'plane_status'
  61 |         struct layer_status  plane_status[KMB_MAX_PLANES];
  |
  ^~~~~~~~~~~~

Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display")
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@xxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20220127194227.2213608-1-anitha.chrisanthus@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/kmb/kmb_plane.c |    6 ------
 1 file changed, 6 deletions(-)

--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -158,12 +158,6 @@ static void kmb_plane_atomic_disable(str
 	case LAYER_1:
 		kmb->plane_status[plane_id].ctrl = LCD_CTRL_VL2_ENABLE;
 		break;
-	case LAYER_2:
-		kmb->plane_status[plane_id].ctrl = LCD_CTRL_GL1_ENABLE;
-		break;
-	case LAYER_3:
-		kmb->plane_status[plane_id].ctrl = LCD_CTRL_GL2_ENABLE;
-		break;
 	}
 
 	kmb->plane_status[plane_id].disable = true;