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drm/amd/display: fix null dereference in reset hw ctx

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Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Yang 2017-10-05 16:00:29 -04:00 • committed by Alex Deucher
commit e6f4f9cfde
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
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@ -1877,7 +1877,7 @@ static void dce110_reset_hw_ctx_wrap(
struct clock_source *old_clk = pipe_ctx_old->clock_source;
/* disable already, no need to disable again */
if (!pipe_ctx->stream->dpms_off)
if (pipe_ctx->stream && !pipe_ctx->stream->dpms_off)
core_link_disable_stream(pipe_ctx_old, FREE_ACQUIRED_RESOURCE);
pipe_ctx_old->stream_res.tg->funcs->set_blank(pipe_ctx_old->stream_res.tg, true);