diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0872-drm-amd-display-Fix-NULL-ptr-deref-for-commit_planes.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0872-drm-amd-display-Fix-NULL-ptr-deref-for-commit_planes.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0872-drm-amd-display-Fix-NULL-ptr-deref-for-commit_planes.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0872-drm-amd-display-Fix-NULL-ptr-deref-for-commit_planes.patch new file mode 100644 index 00000000..87067de0 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0872-drm-amd-display-Fix-NULL-ptr-deref-for-commit_planes.patch @@ -0,0 +1,42 @@ +From 1743bee1dfc1729593e138f8295415e13db70ddc Mon Sep 17 00:00:00 2001 +From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +Date: Fri, 30 Nov 2018 09:56:02 -0500 +Subject: [PATCH 0872/2940] drm/amd/display: Fix NULL ptr deref for + commit_planes_to_stream + +[Why] +With scaling, underscan and abm changes we can end up calling +commit_planes_to_stream in commit_tail. This call uses dm_state->context +which can be NULL if the commit was a fast update. + +[How] +Use dc_state instead since that can't be NULL unless the system ran +out of memory. + +Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108912 +Fixes: e64abff2f133 ("drm/amd/display: Use private obj helpers for dm_atomic_state") + +Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +Acked-by: Alex Deucher <alexander.deucher@amd.com> +Reviewed-by: Leo Li <sunpeng.li@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +index 650d3906f8b0..653bd5ad8e32 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +@@ -5042,7 +5042,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) + status->plane_count, + dm_new_crtc_state, + to_dm_crtc_state(old_crtc_state), +- dm_state->context)) ++ dc_state)) + dm_error("%s: Failed to update stream scaling!\n", __func__); + } + +-- +2.17.1 + |