[PATCH 23/27] NFS: Fix memory leak

[David Howells]

Fix a memory leak whereby multiple clientaddr=xxx mount options just overwrite
the duplicated client_address option pointer, without freeing the old memory.

Signed-off-by: David Howells <dhowells at redhat.com>
---

 fs/nfs/super.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)


diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 0b0c72a..7f5e747 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -936,6 +936,7 @@ static int nfs_parse_mount_options(char *raw,
 			string = match_strdup(args);
 			if (string == NULL)
 				goto out_nomem;
+			kfree(mnt->client_address);
 			mnt->client_address = string;
 			break;
 		case Opt_mountaddr: