From: Gabe Teeger Date: Thu, 11 Jul 2024 18:56:29 +0000 (-0400) Subject: drm/amd/display: Fix Potential Null Dereference X-Git-Tag: v6.12-rc1~126^2~17^2~351 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ec0d7abbb0d464619d6d1646f03603c6616d966e;p=thirdparty%2Fkernel%2Flinux.git drm/amd/display: Fix Potential Null Dereference [what & why] System hang after s4 regression points to code change here. Removing possible NULL dereference. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Nicholas Kazlauskas Signed-off-by: Gabe Teeger Signed-off-by: Aurabindo Pillai Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c index 248d22b23a6db..2d5bd5c7ab949 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c @@ -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);