From 3b58ae18d6c0edb1e39c73ca3d8f6c9da1bebb7f Mon Sep 17 00:00:00 2001
From: Likun Gao <Likun.Gao@amd.com>
Date: Wed, 12 Jan 2022 15:38:24 +0800
Subject: drm/amd/pm: fix NULL pointer issue of amdgpu_smu_stb_debug_fs_init
Git-commit: 6f3c9dbb65be3d90eee1b90e270c4e62b15a91b3
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Fix NULL pointer issue on amdgpu_smu_stb_debug_fs_init if SMU block not
enabled.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index f10a0256413e..9f530160caa7 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -3025,7 +3025,7 @@ void amdgpu_smu_stb_debug_fs_init(struct amdgpu_device *adev)
struct smu_context *smu = adev->powerplay.pp_handle;
- if (!smu->stb_context.stb_buf_size)
+ if (!smu || (!smu->stb_context.stb_buf_size))
return;
debugfs_create_file_size("amdgpu_smu_stb_dump",
--
2.38.1