From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 17 Jun 2011 13:14:27 +0000 (-0400)
Subject: cifs: leak on mount if we share superblock
X-Git-Tag: v3.0-rc5~31^2~10
X-Git-Url: http://git.samba.org/samba.git/?p=sfrench%2Fcifs-2.6.git;a=commitdiff_plain;h=d687ca380f1a8f3043f42efd2403cbe58c846e70

cifs: leak on mount if we share superblock

cifs_sb and nls end up leaked...

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 8f7451f3c8e6..4162ee45d043 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -701,6 +701,8 @@ cifs_do_mount(struct file_system_type *fs_type,
 
 	if (sb->s_fs_info) {
 		cFYI(1, "Use existing superblock");
+		unload_nls(cifs_sb->local_nls);
+		kfree(cifs_sb);
 		goto out_shared;
 	}