pkt_sched: Stop using NLA_PUT*().

These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.

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

1 files changed, 11 insertions, 7 deletions

diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 2c790204d042..389b856c6653 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -429,8 +429,9 @@ static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl,
         opts = nla_nest_start(skb, TCA_OPTIONS);
         if (opts == NULL)
                 goto nla_put_failure;
-        NLA_PUT_U8(skb, TCA_DSMARK_MASK, p->mask[cl - 1]);
-        NLA_PUT_U8(skb, TCA_DSMARK_VALUE, p->value[cl - 1]);
+        if (nla_put_u8(skb, TCA_DSMARK_MASK, p->mask[cl - 1]) ||
+            nla_put_u8(skb, TCA_DSMARK_VALUE, p->value[cl - 1]))
+                goto nla_put_failure;
 
         return nla_nest_end(skb, opts);
 
@@ -447,13 +448,16 @@ static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
         opts = nla_nest_start(skb, TCA_OPTIONS);
         if (opts == NULL)
                 goto nla_put_failure;
-        NLA_PUT_U16(skb, TCA_DSMARK_INDICES, p->indices);
+        if (nla_put_u16(skb, TCA_DSMARK_INDICES, p->indices))
+                goto nla_put_failure;
 
-        if (p->default_index != NO_DEFAULT_INDEX)
-                NLA_PUT_U16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index);
+        if (p->default_index != NO_DEFAULT_INDEX &&
+            nla_put_u16(skb, TCA_DSMARK_DEFAULT_INDEX, p->default_index))
+                goto nla_put_failure;
 
-        if (p->set_tc_index)
-                NLA_PUT_FLAG(skb, TCA_DSMARK_SET_TC_INDEX);
+        if (p->set_tc_index &&
+            nla_put_flag(skb, TCA_DSMARK_SET_TC_INDEX))
+                goto nla_put_failure;
 
         return nla_nest_end(skb, opts);