[PATCH 1/1] drm/amdkfd: Add missing NULL check in svm_range_map_to_gpu

Philip Yang Philip.Yang at amd.com
Mon Apr 4 21:42:55 UTC 2022


bo_adev is NULL for system memory mapping to GPU.

Fixes: 05fe8eeca92 (drm/amdgpu: fix TLB flushing during eviction)
Signed-off-by: Philip Yang <Philip.Yang at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 907b02045824..d3fb2d0b5a25 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -1281,7 +1281,7 @@ svm_range_map_to_gpu(struct kfd_process_device *pdd, struct svm_range *prange,
 					   last_start, prange->start + i,
 					   pte_flags,
 					   last_start - prange->start,
-					   bo_adev->vm_manager.vram_base_offset,
+					   bo_adev ? bo_adev->vm_manager.vram_base_offset : 0,
 					   NULL, dma_addr, &vm->last_update);
 
 		for (j = last_start - prange->start; j <= i; j++)
-- 
2.35.1



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