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[GENETLINK] ctrl: Avoid empty CTRL_ATTR_OPS attribute when dumping

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Based on Jamal's patch but compiled and even tested. :-)

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2006-11-23 11:44:37 -08:00 • committed by David S. Miller
parent cdbc6dae5c
commit e94ef68205
1 changed files with 25 additions and 22 deletions
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9
net/netlink/genetlink.c
View file

@ -394,10 +394,7 @@ static struct genl_family genl_ctrl = {
static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq, static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
u32 flags, struct sk_buff *skb, u8 cmd) u32 flags, struct sk_buff *skb, u8 cmd)
{ {
struct nlattr *nla_ops;
struct genl_ops *ops;
void *hdr; void *hdr;
int idx = 1;
hdr = genlmsg_put(skb, pid, seq, &genl_ctrl, flags, cmd); hdr = genlmsg_put(skb, pid, seq, &genl_ctrl, flags, cmd);
if (hdr == NULL) if (hdr == NULL)
@ -409,6 +406,11 @@ static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
NLA_PUT_U32(skb, CTRL_ATTR_HDRSIZE, family->hdrsize); NLA_PUT_U32(skb, CTRL_ATTR_HDRSIZE, family->hdrsize);
NLA_PUT_U32(skb, CTRL_ATTR_MAXATTR, family->maxattr); NLA_PUT_U32(skb, CTRL_ATTR_MAXATTR, family->maxattr);
if (!list_empty(&family->ops_list)) {
struct nlattr *nla_ops;
struct genl_ops *ops;
int idx = 1;
nla_ops = nla_nest_start(skb, CTRL_ATTR_OPS); nla_ops = nla_nest_start(skb, CTRL_ATTR_OPS);
if (nla_ops == NULL) if (nla_ops == NULL)
goto nla_put_failure; goto nla_put_failure;
@ -436,6 +438,7 @@ static int ctrl_fill_info(struct genl_family *family, u32 pid, u32 seq,
} }
nla_nest_end(skb, nla_ops); nla_nest_end(skb, nla_ops);
}
return genlmsg_end(skb, hdr); return genlmsg_end(skb, hdr);