From 0f68e4277fad42b3e7c80a0923cde8b49354643a Mon Sep 17 00:00:00 2001
From: Vignesh Chander <Vignesh.Chander@amd.com>
Date: Wed, 28 Sep 2022 14:59:45 -0400
Subject: drm/amdgpu: Skip put_reset_domain if it doesn't exist
Git-commit: f61a825aa86115dbdcaba25bba78e007b5e8e1b1
Patch-mainline: v6.1-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 jsc#PED-2849
For xgmi sriov, the reset is handled by host driver and hive->reset_domain
is not initialized so need to check if it exists before doing a put.
Signed-off-by: Vignesh Chander <Vignesh.Chander@amd.com>
Reviewed-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
index dc43fcb93eac..f5318fedf2f0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
@@ -113,7 +113,8 @@ static inline bool amdgpu_reset_get_reset_domain(struct amdgpu_reset_domain *dom
static inline void amdgpu_reset_put_reset_domain(struct amdgpu_reset_domain *domain)
{
- kref_put(&domain->refcount, amdgpu_reset_destroy_reset_domain);
+ if (domain)
+ kref_put(&domain->refcount, amdgpu_reset_destroy_reset_domain);
}
static inline bool amdgpu_reset_domain_schedule(struct amdgpu_reset_domain *domain,
--
2.38.1