linux-kernel - [PATCH 4.6 056/203] SUNRPC: fix xprt leak on xps allocation failure

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Date:	Mon, 25 Jul 2016 13:54:31 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, "J. Bruce Fields" <bfields@...hat.com>,
	Trond Myklebust <trondmy@...marydata.com>
Subject: [PATCH 4.6 056/203] SUNRPC: fix xprt leak on xps allocation failure

4.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: J. Bruce Fields <bfields@...hat.com>

commit 1208fd569c07ab84aa5d024abd863267c2953b4a upstream.

Callers of rpc_create_xprt expect it to put the xprt on success and
failure.

Signed-off-by: J. Bruce Fields <bfields@...hat.com>
Acked-by: Trond Myklebust <trondmy@...marydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 net/sunrpc/clnt.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -453,9 +453,10 @@ static struct rpc_clnt *rpc_create_xprt(
 	struct rpc_xprt_switch *xps;
 
 	xps = xprt_switch_alloc(xprt, GFP_KERNEL);
-	if (xps == NULL)
+	if (xps == NULL) {
+		xprt_put(xprt);
 		return ERR_PTR(-ENOMEM);
-
+	}
 	clnt = rpc_new_client(args, xps, xprt, NULL);
 	if (IS_ERR(clnt))
 		return clnt;