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From 25a5f43de1e6e42660b63e30772098d739b028c7 Mon Sep 17 00:00:00 2001
From: Vitaly Prosyak <vitaly.prosyak@amd.com>
Date: Tue, 13 Dec 2016 14:23:16 -0600
Subject: [PATCH 0061/4131] drm/amd/display: re gamma programming
Fix gamma update logic to avoid crash
Signed-off-by: Vitaly Prosyak <vitaly.prosyak@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.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 75b6e40..9a35e3b 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1445,7 +1445,8 @@ void dc_update_surfaces_for_target(struct dc *dc, struct dc_surface_update *upda
}
}
- if (updates[i].gamma) {
+ if (updates[i].gamma && updates[i].gamma !=
+ surface->public.gamma_correction) {
if (surface->public.gamma_correction != NULL)
dc_gamma_release(surface->public.
gamma_correction);
--
2.7.4
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