From: Jeff Layton <jlayton@redhat.com>
Date: Mon, 20 Jul 2009 17:40:52 +0000 (-0400)
Subject: cifs: free nativeFileSystem field before allocating a new one
X-Git-Tag: firefly_0821_release~13371^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=90a98b2f3f3647fb17667768a348b2b219f2a9f7;p=firefly-linux-kernel-4.4.55.git

cifs: free nativeFileSystem field before allocating a new one

...otherwise, we'll leak this memory if we have to reconnect (e.g. after
network failure).

Signed-off-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index e16d7592116a..9bb5c8750736 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2726,6 +2726,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 		strncpy(tcon->treeName, tree, MAX_TREE_SIZE);
 
 		/* mostly informational -- no need to fail on error here */
+		kfree(tcon->nativeFileSystem);
 		tcon->nativeFileSystem = cifs_strndup_from_ucs(bcc_ptr,
 						      bytes_left, is_unicode,
 						      nls_codepage);