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From cd1ce36cab0fd3493287c4056bccead5335c9a0e Mon Sep 17 00:00:00 2001
From: Yongqiang Sun <yongqiang.sun@amd.com>
Date: Wed, 21 Dec 2016 11:16:48 -0500
Subject: [PATCH 0094/4131] drm/amd/display: don't crash if stream is NULL when
trying to share clocks
Signed-off-by: Yongqiang Sun <yongqiang.sun@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>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 343114b..eac597d 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -288,6 +288,11 @@ static bool is_sharable_clk_src(
if (pipe_with_clk_src->clock_source == NULL)
return false;
+ if (pipe_with_clk_src->stream == NULL) {
+ ASSERT(0);
+ return false;
+ }
+
if (pipe_with_clk_src->stream->signal == SIGNAL_TYPE_VIRTUAL)
return false;
--
2.7.4
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