[PATCH 4.14 39/80] net :sunrpc :clnt :Fix xps refcount imbalance on the error path

[Greg Kroah-Hartman]

[ Upstream commit b96226148491505318228ac52624956bd98f9e0c ]

rpc_clnt_add_xprt take a reference to struct rpc_xprt_switch, but forget
to release it before return, may lead to a memory leak.

Signed-off-by: Lin Yi <teroi...@163.com>
Signed-off-by: Anna Schumaker <anna.schuma...@netapp.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 net/sunrpc/clnt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 6d118357d9dc..9259529e0412 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2706,6 +2706,7 @@ int rpc_clnt_add_xprt(struct rpc_clnt *clnt,
        xprt = xprt_iter_xprt(&clnt->cl_xpi);
        if (xps == NULL || xprt == NULL) {
                rcu_read_unlock();
+               xprt_switch_put(xps);
                return -EAGAIN;
        }
        resvport = xprt->resvport;
-- 
2.20.1