[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>
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index 92b6863..dd57236 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -749,14 +749,16 @@
static int em_meta_change(struct tcf_proto *tp, void *data, int len,
struct tcf_ematch *m)
{
- int err = -EINVAL;
+ int err;
struct nlattr *tb[TCA_EM_META_MAX + 1];
struct tcf_meta_hdr *hdr;
struct meta_match *meta = NULL;
- if (nla_parse(tb, TCA_EM_META_MAX, data, len, NULL) < 0)
+ err = nla_parse(tb, TCA_EM_META_MAX, data, len, NULL);
+ if (err < 0)
goto errout;
+ err = -EINVAL;
if (tb[TCA_EM_META_HDR] == NULL ||
nla_len(tb[TCA_EM_META_HDR]) < sizeof(*hdr))
goto errout;