Attachment 138100 Details for Bug 105502 – [PATCH] drm/amd/display: Fix null pointer when setting backlight

[patch] [PATCH] drm/amd/display: Fix null pointer when setting backlight

0001-drm-amd-display-Fix-null-pointer-when-setting-backli.patch (text/plain), 1.20 KB, created by Harry Wentland on 2018-03-14 13:54:46 UTC

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Creator: Harry Wentland

Created: 2018-03-14 13:54:46 UTC

Size: 1.20 KB

patch

obsolete

>From 82e167262d29bca3582c26c36c78538ef27cfa16 Mon Sep 17 00:00:00 2001
>From: Harry Wentland <harry.wentland@amd.com>
>Date: Mon, 12 Mar 2018 13:43:36 -0400
>Subject: [PATCH] drm/amd/display: Fix null pointer when setting backlight
>
>Fixes: c894d9f208f9 (drm/amd/display: Fixed dim around 1sec when resume
>from S3)
>
>Signed-off-by: Harry Wentland <harry.wentland@amd.com>
>---
> drivers/gpu/drm/amd/display/dc/core/dc_link.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
>index e6d5dcb35e96..eeb04471b2f5 100644
>--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
>+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
>@@ -1960,10 +1960,12 @@ bool dc_link_set_backlight_level(const struct dc_link *link, uint32_t level,
> 		(abm->funcs->set_backlight_level == NULL))
> 		return false;
> 
>-	if (stream->bl_pwm_level == 0)
>-		frame_ramp = 0;
>+	if (stream) {
>+		if (stream->bl_pwm_level == 0)
>+			frame_ramp = 0;
> 
>-	((struct dc_stream_state *)stream)->bl_pwm_level = level;
>+		((struct dc_stream_state *)stream)->bl_pwm_level = level;
>+	}
> 
> 	use_smooth_brightness = dmcu->funcs->is_dmcu_initialized(dmcu);
> 
>-- 
>2.14.1
>

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