sunrpc/xprtrdma/transport.c: fix use-after-free

Fix an obvious use-after-free spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Neil Brown <neilb@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

net/sunrpc/xprtrdma/transport.c

@@ -320,9 +320,9 @@ xprt_setup_rdma(struct xprt_create *args)
 	xprt->slot = kcalloc(xprt->max_reqs,
 				sizeof(struct rpc_rqst), GFP_KERNEL);
 	if (xprt->slot == NULL) {
-		kfree(xprt);
 		dprintk("RPC:       %s: couldn't allocate %d slots\n",
 			__func__, xprt->max_reqs);
+		kfree(xprt);
 		return ERR_PTR(-ENOMEM);
 	}