From 722e96c99f1d7532fdfbb557f50a399f6cc57d82 Mon Sep 17 00:00:00 2001 From: Alex Hung Date: Mon, 15 Jul 2024 10:24:58 -0600 Subject: [PATCH] drm/amd/display: Check null pointers before using them [WHAT & HOW] dc_link is null checked previously in the same function, indicating it might be null as reported by Coverity. This fixes 1 FORWARD_NULL issue reported by Coverity. Signed-off-by: Alex Hung Reviewed-by: Rodrigo Siqueira Tested-by: Daniel Wheeler Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++- 1 file changed, 2 insertions(+), 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 42ca9b52fe5e..b76579815bdf 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -12083,7 +12083,8 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector, } } - as_type = dm_get_adaptive_sync_support_type(amdgpu_dm_connector->dc_link); + if (amdgpu_dm_connector->dc_link) + as_type = dm_get_adaptive_sync_support_type(amdgpu_dm_connector->dc_link); if (as_type == FREESYNC_TYPE_PCON_IN_WHITELIST) { i = parse_hdmi_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info); -- 2.50.1