ext2: Handle error from dquot_initalize()

dquot_initialize() can now return error. Handle it where possible.

Signed-off-by: Jan Kara <jack@suse.com>
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index 5c04a0d..efe5fb2 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -577,7 +577,10 @@
 		goto fail;
 	}
 
-	dquot_initialize(inode);
+	err = dquot_initialize(inode);
+	if (err)
+		goto fail_drop;
+
 	err = dquot_alloc_inode(inode);
 	if (err)
 		goto fail_drop;