xfrm: Return dst directly from xfrm_lookup()

Instead of on the stack.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 2 deletions

diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 0877147d2167..484fdbf92bd8 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1222,7 +1222,11 @@ static int dn_route_output_key(struct dst_entry **pprt, struct flowi *flp, int f
 
         err = __dn_route_output_key(pprt, flp, flags);
         if (err == 0 && flp->proto) {
-                err = xfrm_lookup(&init_net, pprt, flp, NULL, 0);
+                *pprt = xfrm_lookup(&init_net, *pprt, flp, NULL, 0);
+                if (IS_ERR(*pprt)) {
+                        err = PTR_ERR(*pprt);
+                        *pprt = NULL;
+                }
         }
         return err;
 }
@@ -1235,7 +1239,11 @@ int dn_route_output_sock(struct dst_entry **pprt, struct flowi *fl, struct sock
         if (err == 0 && fl->proto) {
                 if (!(flags & MSG_DONTWAIT))
                         fl->flags |= FLOWI_FLAG_CAN_SLEEP;
-                err = xfrm_lookup(&init_net, pprt, fl, sk, 0);
+                *pprt = xfrm_lookup(&init_net, *pprt, fl, sk, 0);
+                if (IS_ERR(*pprt)) {
+                        err = PTR_ERR(*pprt);
+                        *pprt = NULL;
+                }
         }
         return err;
 }