drm/radeon: allways add the VM clear duplicate

We need to allways add the VM clear duplicate of the BO_VA,
no matter what the old status was.
Signed-off-by: Christian König <christian.koenig@amd.com>
Test-by: hadack@gmx.de
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon_vm.c

@@ -493,11 +493,8 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
 	}
 
 	if (bo_va->it.start || bo_va->it.last) {
-		spin_lock(&vm->status_lock);
-		if (list_empty(&bo_va->vm_status)) {
 		/* add a clone of the bo_va to clear the old address */
 		struct radeon_bo_va *tmp;
-			spin_unlock(&vm->status_lock);
 		tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
 		if (!tmp) {
 			mutex_unlock(&vm->mutex);
@@ -508,14 +505,15 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
 		tmp->it.last = bo_va->it.last;
 		tmp->vm = vm;
 		tmp->bo = radeon_bo_ref(bo_va->bo);
-			spin_lock(&vm->status_lock);
-			list_add(&tmp->vm_status, &vm->freed);
-		}
-		spin_unlock(&vm->status_lock);
 
 		interval_tree_remove(&bo_va->it, &vm->va);
 		bo_va->it.start = 0;
 		bo_va->it.last = 0;
+
+		spin_lock(&vm->status_lock);
+		list_del_init(&bo_va->vm_status);
+		list_add(&tmp->vm_status, &vm->freed);
+		spin_unlock(&vm->status_lock);
 	}
 
 	if (soffset || eoffset) {