Commit d4444330 authored by Sung Joon Kim's avatar Sung Joon Kim Committed by Alex Deucher
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drm/amd/display: Add pointer check before function call 



Call to immediate_disable_crtc was not checked before calling, exposing
a potential null pointer hang.

Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: default avatarCharlene Liu <charlene.liu@amd.com>
Acked-by: default avatarQingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: default avatarSung Joon Kim <sungkim@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 4b4f5853

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c

+3 −1
Original line number Diff line number Diff line
@@ -128,7 +128,9 @@ static void dcn35_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state * 
				if (stream_enc && stream_enc->funcs->disable_fifo)

					pipe->stream_res.stream_enc->funcs->disable_fifo(stream_enc);



				if (pipe->stream_res.tg && pipe->stream_res.tg->funcs->immediate_disable_crtc)

					pipe->stream_res.tg->funcs->immediate_disable_crtc(pipe->stream_res.tg);



				reset_sync_context_for_pipe(dc, context, i);

			} else {

				pipe->stream_res.tg->funcs->enable_crtc(pipe->stream_res.tg);