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-rw-r--r--net/ipv4/netfilter/ipt_ULOG.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index ff4b781b1056..32b0e978c8e0 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -125,15 +125,16 @@ static void ulog_send(struct ulog_net *ulog, unsigned int nlgroupnum)
/* timer function to flush queue in flushtimeout time */
static void ulog_timer(unsigned long data)
{
+ unsigned int groupnum = *((unsigned int *)data);
struct ulog_net *ulog = container_of((void *)data,
struct ulog_net,
- nlgroup[*(unsigned int *)data]);
+ nlgroup[groupnum]);
pr_debug("timer function called, calling ulog_send\n");
/* lock to protect against somebody modifying our structure
* from ipt_ulog_target at the same time */
spin_lock_bh(&ulog->lock);
- ulog_send(ulog, data);
+ ulog_send(ulog, groupnum);
spin_unlock_bh(&ulog->lock);
}
@@ -407,8 +408,11 @@ static int __net_init ulog_tg_net_init(struct net *net)
spin_lock_init(&ulog->lock);
/* initialize ulog_buffers */
- for (i = 0; i < ULOG_MAXNLGROUPS; i++)
- setup_timer(&ulog->ulog_buffers[i].timer, ulog_timer, i);
+ for (i = 0; i < ULOG_MAXNLGROUPS; i++) {
+ ulog->nlgroup[i] = i;
+ setup_timer(&ulog->ulog_buffers[i].timer, ulog_timer,
+ (unsigned long)&ulog->nlgroup[i]);
+ }
ulog->nflognl = netlink_kernel_create(net, NETLINK_NFLOG, &cfg);
if (!ulog->nflognl)