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From: Wayne Lin <Wayne.Lin@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: Chris Park <Chris.Park@amd.com>,
	Eryk.Brol@amd.com, Sunpeng.Li@amd.com, Harry.Wentland@amd.com,
	Qingqing.Zhuo@amd.com, Rodrigo.Siqueira@amd.com,
	Anson.Jacob@amd.com, Aurabindo.Pillai@amd.com,
	Bhawanpreet.Lakha@amd.com, bindu.r@amd.com
Subject: [PATCH 08/16] drm/amd/display: Fix BSOD with NULL check
Date: Fri, 23 Apr 2021 10:37:06 +0800	[thread overview]
Message-ID: <20210423023714.22044-9-Wayne.Lin@amd.com> (raw)
In-Reply-To: <20210423023714.22044-1-Wayne.Lin@amd.com>

From: Chris Park <Chris.Park@amd.com>

[Why]
CLK mgr is null for server settings.

[How]
Guard the function with NULL check.

Signed-off-by: Chris Park <Chris.Park@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Wayne Lin <waynelin@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +-
 1 file changed, 1 insertion(+), 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 e57df2f6f824..a869702d77af 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3274,7 +3274,7 @@ void dc_allow_idle_optimizations(struct dc *dc, bool allow)
 	if (dc->debug.disable_idle_power_optimizations)
 		return;
 
-	if (dc->clk_mgr->funcs->is_smu_present)
+	if (dc->clk_mgr != NULL && dc->clk_mgr->funcs->is_smu_present)
 		if (!dc->clk_mgr->funcs->is_smu_present(dc->clk_mgr))
 			return;
 
-- 
2.17.1

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  parent reply	other threads:[~2021-04-23  2:40 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-23  2:36 [PATCH 00/16] DC Patches April 23, 2021 Wayne Lin
2021-04-23  2:36 ` [PATCH 01/16] drm/amd/display: Add new case to get spread spectrum info Wayne Lin
2021-04-23  2:37 ` [PATCH 02/16] drm/amd/display: fix HDCP reset sequence on reinitialize Wayne Lin
2021-04-23  2:37 ` [PATCH 03/16] drm/amd/display: Revert wait vblank on update dpp clock Wayne Lin
2021-04-23  2:37 ` [PATCH 04/16] drm/amd/display: skip program clock when allow seamless boot Wayne Lin
2021-04-23  2:37 ` [PATCH 05/16] drm/amd/display: Expose internal display flag via debugfs Wayne Lin
2021-04-23  2:37 ` [PATCH 06/16] drm/amd/display: ddc resource data need to be initialized Wayne Lin
2021-04-23  2:37 ` [PATCH 07/16] drm/amd/display: Added multi instance support for ABM Wayne Lin
2021-04-23  2:37 ` Wayne Lin [this message]
2021-04-23  2:37 ` [PATCH 09/16] drm/amd/display: Add new DP_SEC registers for programming SDP Line number Wayne Lin
2021-04-23  2:37 ` [PATCH 10/16] drm/amd/display: Clear MASTER_UPDATE_LOCK_DB_EN when disable doublebuffer lock Wayne Lin
2021-04-23  2:37 ` [PATCH 11/16] drm/amd/display: fix wrong statement in mst hpd debugfs Wayne Lin
2021-04-23  2:37 ` [PATCH 12/16] drm/amd/display: take max dsc stream bandwidth overhead into account Wayne Lin
2021-04-23  2:37 ` [PATCH 13/16] drm/amd/display: avoid to authentication when DEVICE_COUNT=0 Wayne Lin
2021-04-23  2:37 ` [PATCH 14/16] drm/amd/display: Add SE_DCN3_REG_LIST for control SDP num Wayne Lin
2021-04-23  2:37 ` [PATCH 15/16] drm/amd/display: [FW Promotion] Release 0.0.63 Wayne Lin
2021-04-23  2:37 ` [PATCH 16/16] drm/amd/display: 3.2.133 Wayne Lin
2021-04-23 19:36 ` [PATCH 00/16] DC Patches April 23, 2021 Wheeler, Daniel

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