diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1085-drm-amd-display-Check-for-NULL-when-creating-gamma-s.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1085-drm-amd-display-Check-for-NULL-when-creating-gamma-s.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1085-drm-amd-display-Check-for-NULL-when-creating-gamma-s.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1085-drm-amd-display-Check-for-NULL-when-creating-gamma-s.patch new file mode 100644 index 00000000..6ed2fc2c --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1085-drm-amd-display-Check-for-NULL-when-creating-gamma-s.patch @@ -0,0 +1,44 @@ +From 007bc14a0412afb0ef3823dc11465e77b20ab7c1 Mon Sep 17 00:00:00 2001 +From: Krunoslav Kovac <Krunoslav.Kovac@amd.com> +Date: Wed, 2 Jan 2019 14:12:53 -0500 +Subject: [PATCH 1085/2940] drm/amd/display: Check for NULL when creating gamma + struct + +[Wjy&How] Some stress test is causing unexpected memory allocation +failure. This prevents null dereference but there will likely be problems +later, hard to gracefully handle memalloc fail for critical objects. + +Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> +Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +Acked-by: Reza Amini <Reza.Amini@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_surface.c | 9 ++++++--- + 1 file changed, 6 insertions(+), 3 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c +index c60c9b4c3075..ee6bd50f60b8 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c +@@ -40,11 +40,14 @@ static void construct(struct dc_context *ctx, struct dc_plane_state *plane_state + plane_state->ctx = ctx; + + plane_state->gamma_correction = dc_create_gamma(); +- plane_state->gamma_correction->is_identity = true; ++ if (plane_state->gamma_correction != NULL) ++ plane_state->gamma_correction->is_identity = true; + + plane_state->in_transfer_func = dc_create_transfer_func(); +- plane_state->in_transfer_func->type = TF_TYPE_BYPASS; +- plane_state->in_transfer_func->ctx = ctx; ++ if (plane_state->in_transfer_func != NULL) { ++ plane_state->in_transfer_func->type = TF_TYPE_BYPASS; ++ plane_state->in_transfer_func->ctx = ctx; ++ } + } + + static void destruct(struct dc_plane_state *plane_state) +-- +2.17.1 + |