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netlink: Improve returned error codes

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Make nlmsg_trim(), nlmsg_cancel(), genlmsg_cancel(), and
nla_nest_cancel() void functions.

Return -EMSGSIZE instead of -1 if the provided message buffer is not
big enough.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf
2008-06-03 16:36:54 -07:00
committed by David S. Miller
parent 1f9d11c7c9
commit bc3ed28caa
11 changed files with 42 additions and 32 deletions
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6
net/sched/sch_dsmark.c
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@@ -444,7 +444,8 @@ static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl,
return nla_nest_end(skb, opts);
nla_put_failure:
return nla_nest_cancel(skb, opts);
nla_nest_cancel(skb, opts);
return -EMSGSIZE;
}
static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
@@ -466,7 +467,8 @@ static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
return nla_nest_end(skb, opts);
nla_put_failure:
return nla_nest_cancel(skb, opts);
nla_nest_cancel(skb, opts);
return -EMSGSIZE;
}
static const struct Qdisc_class_ops dsmark_class_ops = {