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net: netlink: make netlink_walk_start() void return type 

netlink_walk_start() needed to return an error code because of
rhashtable_walk_init(). but that was converted to rhashtable_walk_enter()
and it is a void type function. so now netlink_walk_start() doesn't need
any return value.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Taehee Yoo 2019-06-10 02:05:30 +09:00 committed by David S. Miller
parent e28799e52a
commit abf9979f7e
1 changed files with 3 additions and 12 deletions
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15
net/netlink/af_netlink.c
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@ -2544,12 +2544,10 @@ struct nl_seq_iter {
int link;
};
static int netlink_walk_start(struct nl_seq_iter *iter)
static void netlink_walk_start(struct nl_seq_iter *iter)
{
rhashtable_walk_enter(&nl_table[iter->link].hash, &iter->hti);
rhashtable_walk_start(&iter->hti);
return 0;
}
static void netlink_walk_stop(struct nl_seq_iter *iter)
@ -2565,8 +2563,6 @@ static void *__netlink_seq_next(struct seq_file *seq)
do {
for (;;) {
int err;
nlk = rhashtable_walk_next(&iter->hti);
if (IS_ERR(nlk)) {
@ -2583,9 +2579,7 @@ static void *__netlink_seq_next(struct seq_file *seq)
if (++iter->link >= MAX_LINKS)
return NULL;
err = netlink_walk_start(iter);
if (err)
return ERR_PTR(err);
netlink_walk_start(iter);
}
} while (sock_net(&nlk->sk) != seq_file_net(seq));
@ -2597,13 +2591,10 @@ static void *netlink_seq_start(struct seq_file *seq, loff_t *posp)
struct nl_seq_iter *iter = seq->private;
void *obj = SEQ_START_TOKEN;
loff_t pos;
int err;
iter->link = 0;
err = netlink_walk_start(iter);
if (err)
return ERR_PTR(err);
netlink_walk_start(iter);
for (pos = *posp; pos && obj && !IS_ERR(obj); pos--)
obj = __netlink_seq_next(seq);