diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index 8c66e92..d707434 100644
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -253,8 +253,7 @@
 
 	lock_page(page);
 	err = mapping->a_ops->prepare_write(NULL, page, from, to);
-	if (err)
-		BUG();
+	BUG_ON(err);
 	de->inode = 0;
 	err = dir_commit_chunk(page, from, to);
 	dir_put_page(page);
@@ -353,8 +352,7 @@
 
 	lock_page(page);
 	err = page->mapping->a_ops->prepare_write(NULL, page, from, to);
-	if (err)
-		BUG();
+	BUG_ON(err);
 	de->inode = cpu_to_fs16(SYSV_SB(inode->i_sb), inode->i_ino);
 	err = dir_commit_chunk(page, from, to);
 	dir_put_page(page);