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Diffstat (limited to 'net/ipv6/xfrm6_tunnel.c')
-rw-r--r--net/ipv6/xfrm6_tunnel.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 8cfc58b96fc..08f9abbdf1d 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -31,6 +31,7 @@
#include <net/protocol.h>
#include <linux/ipv6.h>
#include <linux/icmpv6.h>
+#include <linux/mutex.h>
#ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG
# define X6TDEBUG 3
@@ -357,19 +358,19 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct xfrm_decap_state *dec
}
static struct xfrm6_tunnel *xfrm6_tunnel_handler;
-static DECLARE_MUTEX(xfrm6_tunnel_sem);
+static DEFINE_MUTEX(xfrm6_tunnel_mutex);
int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
{
int ret;
- down(&xfrm6_tunnel_sem);
+ mutex_lock(&xfrm6_tunnel_mutex);
ret = 0;
if (xfrm6_tunnel_handler != NULL)
ret = -EINVAL;
if (!ret)
xfrm6_tunnel_handler = handler;
- up(&xfrm6_tunnel_sem);
+ mutex_unlock(&xfrm6_tunnel_mutex);
return ret;
}
@@ -380,13 +381,13 @@ int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
{
int ret;
- down(&xfrm6_tunnel_sem);
+ mutex_lock(&xfrm6_tunnel_mutex);
ret = 0;
if (xfrm6_tunnel_handler != handler)
ret = -EINVAL;
if (!ret)
xfrm6_tunnel_handler = NULL;
- up(&xfrm6_tunnel_sem);
+ mutex_unlock(&xfrm6_tunnel_mutex);
synchronize_net();