From: Junwei Zhang <Jerry.Zhang@amd.com>
Date: Fri, 11 May 2018 14:54:31 +0800
Subject: drm/amdgpu: fix null pointer for bo unmap trace function
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Git-commit: c430bc977059a73758f666da545bc16c759fc165
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
fix crash in trace.
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -252,7 +252,7 @@ TRACE_EVENT(amdgpu_vm_bo_unmap,
),
TP_fast_assign(
- __entry->bo = bo_va->base.bo;
+ __entry->bo = bo_va ? bo_va->base.bo : NULL;
__entry->start = mapping->start;
__entry->last = mapping->last;
__entry->offset = mapping->offset;