[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_u32.c b/net/sched/cls_u32.c
index aaf5049f951c..3228cc4ae082 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -531,8 +531,9 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
         if (opt == NULL)
                 return handle ? -EINVAL : 0;
 
-        if (nla_parse_nested(tb, TCA_U32_MAX, opt, NULL) < 0)
-                return -EINVAL;
+        err = nla_parse_nested(tb, TCA_U32_MAX, opt, NULL);
+        if (err < 0)
+                return err;
 
         if ((n = (struct tc_u_knode*)*arg) != NULL) {
                 if (TC_U32_KEY(n->handle) == 0)