Commit ccab1217 authored Jan 02, 2019 by Krunoslav Kovac Committed by Alex Deucher Jan 14, 2019

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>

parent 5dc3fc5a

drivers/gpu/drm/amd/display/dc/core/dc_surface.c

+6 −3

Original line number	Diff line number	Diff line
		@@ -40,12 +40,15 @@ static void construct(struct dc_context ctx, struct dc_plane_state plane_state
		plane_state->ctx = ctx;

		plane_state->gamma_correction = dc_create_gamma();
		if (plane_state->gamma_correction != NULL)
		plane_state->gamma_correction->is_identity = true;

		plane_state->in_transfer_func = dc_create_transfer_func();
		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)
		{

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