X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0656-drm-vc4-Ensure-zpos-is-always-initialised.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0656-drm-vc4-Ensure-zpos-is-always-initialised.patch;h=bd13a32d2fd5f088c3ca8d76534efd3b159c5dec;hb=67dcc43f3a22dc3a7ac07a7065971b426feeb043;hp=0000000000000000000000000000000000000000;hpb=47a93a810f78adce5a130d287f82b28e9b54313c;p=openwrt%2Fopenwrt.git

diff --git a/target/linux/brcm2708/patches-4.19/950-0656-drm-vc4-Ensure-zpos-is-always-initialised.patch b/target/linux/brcm2708/patches-4.19/950-0656-drm-vc4-Ensure-zpos-is-always-initialised.patch
new file mode 100644
index 0000000000..bd13a32d2f
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0656-drm-vc4-Ensure-zpos-is-always-initialised.patch
@@ -0,0 +1,26 @@
+From cf80e05ebb55c121c1567ac42b9e1a885fc346a3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Fri, 19 Jul 2019 17:49:00 +0100
+Subject: [PATCH] drm/vc4: Ensure zpos is always initialised
+
+The compiler is warning that default_zpos can be used
+uninitialised as there is no default case to catch all plane
+types.
+No other plane types should ever be presented to vc4_fkms_plane_init,
+but add a default case regardless.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -773,6 +773,7 @@ static struct drm_plane *vc4_fkms_plane_
+ 	 * other layers as requested by KMS.
+ 	 */
+ 	switch (type) {
++	default:
+ 	case DRM_PLANE_TYPE_PRIMARY:
+ 		default_zpos = 0;
+ 		break;