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net :sunrpc :clnt :Fix xps refcount imbalance on the error path

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[ Upstream commit b962261484 ]

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 <teroincn@163.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lin Yi
2019-06-10 10:16:56 +08:00
committed by Greg Kroah-Hartman
parent 3dc99f53b0
commit 5636cbbe30
1 changed files with 1 additions and 0 deletions
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net/sunrpc/clnt.c
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@@ -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;