1 files changed, 34 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3111-drm-amd-display-fix-a-missing-null-check-on-a-failed.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3111-drm-amd-display-fix-a-missing-null-check-on-a-failed.patch
new file mode 100644
index 00000000..e6da9b89
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3111-drm-amd-display-fix-a-missing-null-check-on-a-failed.patch
@@ -0,0 +1,34 @@
+From d059da84f0dee9afb90dd6b5f6c41611ac480c23 Mon Sep 17 00:00:00 2001
+From: Colin Ian King <colin.king@canonical.com>
+Date: Tue, 23 Jul 2019 15:23:12 +0100
+Subject: [PATCH 3111/4256] drm/amd/display: fix a missing null check on a
+ failed kzalloc
+
+Currently the allocation of config may fail and a null pointer
+dereference on config can occur.  Fix this by added a null
+check on a failed allocation of config.
+
+Addresses-Coverity: ("Dereference null return")
+Fixes: c2cd9d04ecf0 ("drm/amd/display: Hook up calls to do stereo mux and dig programming to stereo control interface")
+Signed-off-by: Colin Ian King <colin.king@canonical.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
+index ecf562e386cb..bc48e8e6ce4d 100644
+--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
+@@ -1269,6 +1269,8 @@ bool dc_set_generic_gpio_for_stereo(bool enable,
+ 	struct gpio_generic_mux_config *config = kzalloc(sizeof(struct gpio_generic_mux_config),
+ 			   GFP_KERNEL);
+ 
++	if (!config)
++		return false;
+ 	pin_info = dal_gpio_get_generic_pin_info(gpio_service, GPIO_ID_GENERIC, 0);
+ 
+ 	if (pin_info.mask == 0xFFFFFFFF || pin_info.offset == 0xFFFFFFFF) {
+-- 
+2.17.1
+