[NET_SCHED]: Propagate nla_parse return value

nla_parse() returns more detailed errno codes, propagate them back on
error.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index b1aae84cbadc..3aa8109aa3ce 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -440,8 +440,9 @@ static int route4_change(struct tcf_proto *tp, unsigned long base,
         if (opt == NULL)
                 return handle ? -EINVAL : 0;
 
-        if (nla_parse_nested(tb, TCA_ROUTE4_MAX, opt, NULL) < 0)
-                return -EINVAL;
+        err = nla_parse_nested(tb, TCA_ROUTE4_MAX, opt, NULL);
+        if (err < 0)
+                return err;
 
         if ((f = (struct route4_filter*)*arg) != NULL) {
                 if (f->handle != handle && handle)