drm/radeon: allways add the VM clear duplicate

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / radeon / radeon_vm.c

diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index ec10533a49b87a905aa82eda96e48bddae32d87f..031096599f84863fb8a034a305572189c76b7a8f 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -493,29 +493,27 @@ 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);
-                               r = -ENOMEM;
-                               goto error_unreserve;
-                       }
-                       tmp->it.start = bo_va->it.start;
-                       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);
+               /* add a clone of the bo_va to clear the old address */
+               struct radeon_bo_va *tmp;
+               tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
+               if (!tmp) {
+                       mutex_unlock(&vm->mutex);
+                       r = -ENOMEM;
+                       goto error_unreserve;
                }
-               spin_unlock(&vm->status_lock);
+               tmp->it.start = bo_va->it.start;
+               tmp->it.last = bo_va->it.last;
+               tmp->vm = vm;
+               tmp->bo = radeon_bo_ref(bo_va->bo);
 
                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) {