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Diffstat (limited to 'net/ipv4/netfilter/ip_queue.c')
-rw-r--r--net/ipv4/netfilter/ip_queue.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 08f80e2ea2aa..1655866c55b9 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -35,6 +35,7 @@
#include <linux/sysctl.h>
#include <linux/proc_fs.h>
#include <linux/security.h>
+#include <linux/mutex.h>
#include <net/sock.h>
#include <net/route.h>
@@ -61,7 +62,7 @@ static unsigned int queue_dropped = 0;
static unsigned int queue_user_dropped = 0;
static struct sock *ipqnl;
static LIST_HEAD(queue_list);
-static DECLARE_MUTEX(ipqnl_sem);
+static DEFINE_MUTEX(ipqnl_mutex);
static void
ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict)
@@ -539,7 +540,7 @@ ipq_rcv_sk(struct sock *sk, int len)
struct sk_buff *skb;
unsigned int qlen;
- down(&ipqnl_sem);
+ mutex_lock(&ipqnl_mutex);
for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) {
skb = skb_dequeue(&sk->sk_receive_queue);
@@ -547,7 +548,7 @@ ipq_rcv_sk(struct sock *sk, int len)
kfree_skb(skb);
}
- up(&ipqnl_sem);
+ mutex_unlock(&ipqnl_mutex);
}
static int
@@ -708,8 +709,8 @@ cleanup_sysctl:
cleanup_ipqnl:
sock_release(ipqnl->sk_socket);
- down(&ipqnl_sem);
- up(&ipqnl_sem);
+ mutex_lock(&ipqnl_mutex);
+ mutex_unlock(&ipqnl_mutex);
cleanup_netlink_notifier:
netlink_unregister_notifier(&ipq_nl_notifier);