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drm/amd/display: add a NULL pointer check

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[why]
a fix for a memory crash stress test

Reviewed-by: Chris Park <chris.park@amd.com>
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu 2026-07-24 13:41:13 -04:00 committed by Alex Deucher
parent 6ee70c955f
commit 8f27dbc82e
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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@ -1166,6 +1166,10 @@ void dcn10_link_encoder_dp_set_phy_pattern(
{
struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc);
if (!param) {
ASSERT_CRITICAL(false);
return;
}
switch (param->dp_phy_pattern) {
case DP_TEST_PATTERN_TRAINING_PATTERN1:
dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 0);
@ -1189,8 +1193,7 @@ void dcn10_link_encoder_dp_set_phy_pattern(
set_dp_phy_pattern_prbs7(enc10);
break;
case DP_TEST_PATTERN_80BIT_CUSTOM:
if (param)
set_dp_phy_pattern_80bit_custom(
set_dp_phy_pattern_80bit_custom(
enc10, param->custom_pattern);
break;
case DP_TEST_PATTERN_CP2520_1:
@ -1203,8 +1206,7 @@ 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: {
if (param)
set_dp_phy_pattern_passthrough_mode(
set_dp_phy_pattern_passthrough_mode(
enc10, param->dp_panel_mode);
break;
}