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drm/amd/display: Fix Potential Null Dereference

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[what & why]
System hang after s4 regression points to code change here.
Removing possible NULL dereference.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Gabe Teeger 2024-07-11 14:56:29 -04:00 committed by Alex Deucher
parent a90e1dc25c
commit ec0d7abbb0
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
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@ -139,9 +139,9 @@ static void dcn35_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *
old_pipe->stream != new_pipe->stream &&
old_pipe->stream_res.tg == new_pipe->stream_res.tg &&
new_pipe->stream->link_enc && !new_pipe->stream->dpms_off &&
new_pipe->stream->link->link_enc->funcs->is_dig_enabled &&
new_pipe->stream->link->link_enc->funcs->is_dig_enabled(
new_pipe->stream->link->link_enc) &&
new_pipe->stream->link_enc->funcs->is_dig_enabled &&
new_pipe->stream->link_enc->funcs->is_dig_enabled(
new_pipe->stream->link_enc) &&
new_pipe->stream_res.stream_enc &&
new_pipe->stream_res.stream_enc->funcs->is_fifo_enabled &&
new_pipe->stream_res.stream_enc->funcs->is_fifo_enabled(new_pipe->stream_res.stream_enc);