diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 7d2c8b1698279cddb8e480401684ea62bf58e848..326dae31b675d042ecfc17329f5b4599fe95e43c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -3300,7 +3300,7 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid,
 	struct amdgpu_bo *root;
 	uint64_t value, flags;
 	struct amdgpu_vm *vm;
-	long r;
+	int r;
 
 	spin_lock(&adev->vm_manager.pasid_lock);
 	vm = idr_find(&adev->vm_manager.pasid_idr, pasid);
@@ -3349,6 +3349,12 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid,
 		value = 0;
 	}
 
+	r = dma_resv_reserve_shared(root->tbo.base.resv, 1);
+	if (r) {
+		pr_debug("failed %d to reserve fence slot\n", r);
+		goto error_unlock;
+	}
+
 	r = amdgpu_vm_bo_update_mapping(adev, adev, vm, true, false, NULL, addr,
 					addr, flags, value, NULL, NULL,
 					NULL);
@@ -3360,7 +3366,7 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid,
 error_unlock:
 	amdgpu_bo_unreserve(root);
 	if (r < 0)
-		DRM_ERROR("Can't handle page fault (%ld)\n", r);
+		DRM_ERROR("Can't handle page fault (%d)\n", r);
 
 error_unref:
 	amdgpu_bo_unref(&root);