blob: 78a73dccaf7391f2ef53585d24b835da6b20ed69 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
From 12ca0be853d9133fbcdd14bf973179e6b5c73b2e Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 30 May 2018 09:34:23 -0500
Subject: [PATCH 4558/5725] drm/amdgpu/display: check if ppfuncs exists before
using it
Fixes a crash on asics without powerplay yet (e.g., vega20).
Reviewed-by: Rex Zhu<rezhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
index d5e6b45..5a33461 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
@@ -343,7 +343,7 @@ bool dm_pp_get_clock_levels_by_type_with_latency(
struct pp_clock_levels_with_latency pp_clks = { 0 };
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (!pp_funcs->get_clock_by_type_with_latency)
+ if (!pp_funcs || !pp_funcs->get_clock_by_type_with_latency)
return false;
if (pp_funcs->get_clock_by_type_with_latency(pp_handle,
--
2.7.4
|
