1 files changed, 4 insertions, 1 deletions

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index b5f940ce0143..84b2dc76f140 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -882,10 +882,13 @@ int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args)
         if (IS_ERR(dev))
                 return PTR_ERR(dev);
 
+        if (bdi_debug_register(bdi, dev_name(dev))) {
+                device_destroy(bdi_class, dev->devt);
+                return -ENOMEM;
+        }
         cgwb_bdi_register(bdi);
         bdi->dev = dev;
 
-        bdi_debug_register(bdi, dev_name(dev));
         set_bit(WB_registered, &bdi->wb.state);
 
         spin_lock_bh(&bdi_lock);