diff --git a/mm/memory.c b/mm/memory.c
index e347e10..d90ff9d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2352,10 +2352,8 @@
 	if (!vma)
 		return -1;
 	write = (vma->vm_flags & VM_WRITE) != 0;
-	if (addr >= end)
-		BUG();
-	if (end > vma->vm_end)
-		BUG();
+	BUG_ON(addr >= end);
+	BUG_ON(end > vma->vm_end);
 	len = (end+PAGE_SIZE-1)/PAGE_SIZE-addr/PAGE_SIZE;
 	ret = get_user_pages(current, current->mm, addr,
 			len, write, 0, NULL, NULL);