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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index cc6dca2581a6..dcb2d3859cf1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -90,10 +90,13 @@ struct amdgpu_bo_list_entry *amdgpu_vm_get_bos(struct amdgpu_device *adev,
struct amdgpu_bo_list_entry *list;
unsigned i, idx;
+ mutex_lock(&vm->mutex);
list = drm_malloc_ab(vm->max_pde_used + 2,
sizeof(struct amdgpu_bo_list_entry));
- if (!list)
+ if (!list) {
+ mutex_unlock(&vm->mutex);
return NULL;
+ }
/* add the vm page table to the list */
list[0].robj = vm->page_directory;
@@ -116,6 +119,7 @@ struct amdgpu_bo_list_entry *amdgpu_vm_get_bos(struct amdgpu_device *adev,
list[idx].tv.shared = true;
list_add(&list[idx++].tv.head, head);
}
+ mutex_unlock(&vm->mutex);
return list;
}
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