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drm/amd/display: add null pointer access check

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[why]
need to add null pointer access check

Reviewed-by: Gabe Teeger <gabe.teeger@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu
2026-06-22 16:29:25 -04:00
committed by Alex Deucher
parent 3b1fdd6413
commit b6f466c509
1 changed files with 6 additions and 4 deletions
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10
drivers/gpu/drm/amd/display/dc/dio/dcn10/dcn10_link_encoder.c
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@@ -1189,8 +1189,9 @@ void dcn10_link_encoder_dp_set_phy_pattern(
set_dp_phy_pattern_prbs7(enc10);
break;
case DP_TEST_PATTERN_80BIT_CUSTOM:
set_dp_phy_pattern_80bit_custom(
enc10, param->custom_pattern);
if (param)
set_dp_phy_pattern_80bit_custom(
enc10, param->custom_pattern);
break;
case DP_TEST_PATTERN_CP2520_1:
set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 1);
@@ -1202,8 +1203,9 @@ void dcn10_link_encoder_dp_set_phy_pattern(
set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 3);
break;
case DP_TEST_PATTERN_VIDEO_MODE: {
set_dp_phy_pattern_passthrough_mode(
enc10, param->dp_panel_mode);
if (param)
set_dp_phy_pattern_passthrough_mode(
enc10, param->dp_panel_mode);
break;
}