target/linux/bcm27xx/patches-5.4/950-0287-drm-vc4-Ensure-zpos-is-always-initialised.patch

   1 From 9ab46d940789f74980d18715f5715992559ea857 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Fri, 19 Jul 2019 17:49:00 +0100
   4 Subject: [PATCH] drm/vc4: Ensure zpos is always initialised
   5
   6 The compiler is warning that default_zpos can be used
   7 uninitialised as there is no default case to catch all plane
   8 types.
   9 No other plane types should ever be presented to vc4_fkms_plane_init,
  10 but add a default case regardless.
  11
  12 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  13 ---
  14  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 1 +
  15  1 file changed, 1 insertion(+)
  16
  17 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  18 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  19 @@ -804,6 +804,7 @@ static struct drm_plane *vc4_fkms_plane_
  20          * other layers as requested by KMS.
  21          */
  22         switch (type) {
  23 +       default:
  24         case DRM_PLANE_TYPE_PRIMARY:
  25                 default_zpos = 0;
  26                 break;