[XFRM]: Algorithm lookup using .compat name

Installing an IPsec SA using old algorithm names (.compat) does not work
if the algorithm is not already loaded. When not using the PF_KEY
interface, algorithms are not preloaded in xfrm_probe_algs() and
installing a IPsec SA fails.
Signed-off-by: NMartin Willi <martin@strongswan.org>
Acked-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/xfrm/xfrm_algo.c

@@ -399,7 +399,8 @@ static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list,
 		if (!probe)
 			break;
 
-		status = crypto_has_alg(name, type, mask | CRYPTO_ALG_ASYNC);
+		status = crypto_has_alg(list[i].name, type,
+					mask | CRYPTO_ALG_ASYNC);
 		if (!status)
 			break;