From a58e0be6f6b3eb2079b0b8fedc9df6fa86869f1e Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Fri, 22 Mar 2013 12:52:59 -0400 Subject: SUNRPC: Remove extra xprt_put() While testing error cases where rpc_new_client() fails, I saw some oopses. If rpc_new_client() fails, it already invokes xprt_put(). Thus __rpc_clone_client() does not need to invoke it again. Introduced by commit 1b63a751 "SUNRPC: Refactor rpc_clone_client()" Fri Sep 14, 2012. Signed-off-by: Chuck Lever Cc: stable@vger.kernel.org [>=3.7] Signed-off-by: Trond Myklebust --- net/sunrpc/clnt.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'net') diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index dcc446e7fbf6..9df26b785dc7 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -512,7 +512,7 @@ static struct rpc_clnt *__rpc_clone_client(struct rpc_create_args *args, new = rpc_new_client(args, xprt); if (IS_ERR(new)) { err = PTR_ERR(new); - goto out_put; + goto out_err; } atomic_inc(&clnt->cl_count); @@ -525,8 +525,6 @@ static struct rpc_clnt *__rpc_clone_client(struct rpc_create_args *args, new->cl_chatty = clnt->cl_chatty; return new; -out_put: - xprt_put(xprt); out_err: dprintk("RPC: %s: returned error %d\n", __func__, err); return ERR_PTR(err); -- cgit v1.2.3 From f05c124a70a4953a66acbd6d6c601ea1eb5d0fa7 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 5 Apr 2013 14:13:21 -0400 Subject: SUNRPC: Fix a potential memory leak in rpc_new_client If the call to rpciod_up() fails, we currently leak a reference to the struct rpc_xprt. As part of the fix, we also remove the redundant check for xprt!=NULL. This is already taken care of by the callers. Signed-off-by: Trond Myklebust --- net/sunrpc/clnt.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'net') diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 9df26b785dc7..d5f35f15af98 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -304,10 +304,8 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru err = rpciod_up(); if (err) goto out_no_rpciod; - err = -EINVAL; - if (!xprt) - goto out_no_xprt; + err = -EINVAL; if (args->version >= program->nrvers) goto out_err; version = program->version[args->version]; @@ -382,10 +380,9 @@ out_no_principal: out_no_stats: kfree(clnt); out_err: - xprt_put(xprt); -out_no_xprt: rpciod_down(); out_no_rpciod: + xprt_put(xprt); return ERR_PTR(err); } -- cgit v1.2.3