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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-04-04 15:55:00 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-12 09:52:10 -0700
commitc80a1c58deeac0c21cbf8d952c1bd08f1afbe8ed (patch)
tree8010ff3262fb4bc9b3c196e25f45115b6fdc0fa2
parent020dff84998201602ae4d00bd38acafc62f5c693 (diff)
NFSv4: Fix a memory leak in nfs4_discover_server_trunking
commit b193d59a4863ea670872d76dc99231ddeb598625 upstream. When we assign a new rpc_client to clp->cl_rpcclient, we need to destroy the old one. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/nfs/nfs4state.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index e61f68d5ef21..994fbe2c714c 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1877,7 +1877,13 @@ again:
status = PTR_ERR(clnt);
break;
}
- clp->cl_rpcclient = clnt;
+ /* Note: this is safe because we haven't yet marked the
+ * client as ready, so we are the only user of
+ * clp->cl_rpcclient
+ */
+ clnt = xchg(&clp->cl_rpcclient, clnt);
+ rpc_shutdown_client(clnt);
+ clnt = clp->cl_rpcclient;
goto again;
case -NFS4ERR_MINOR_VERS_MISMATCH: