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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 <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2013-04-05 14:13:21 -04:00
parent 7b1f1fd184
commit f05c124a70
1 changed files with 2 additions and 5 deletions
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7
net/sunrpc/clnt.c
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@ -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);
}