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Diffstat (limited to 'net/ipv6/ipcomp6.c')
-rw-r--r--net/ipv6/ipcomp6.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 6107592fbd8c..3c7b324cd20c 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -50,6 +50,7 @@
#include <net/protocol.h>
#include <linux/ipv6.h>
#include <linux/icmpv6.h>
+#include <linux/mutex.h>
struct ipcomp6_tfms {
struct list_head list;
@@ -57,7 +58,7 @@ struct ipcomp6_tfms {
int users;
};
-static DECLARE_MUTEX(ipcomp6_resource_sem);
+static DEFINE_MUTEX(ipcomp6_resource_mutex);
static void **ipcomp6_scratches;
static int ipcomp6_scratch_users;
static LIST_HEAD(ipcomp6_tfms_list);
@@ -405,9 +406,9 @@ static void ipcomp6_destroy(struct xfrm_state *x)
if (!ipcd)
return;
xfrm_state_delete_tunnel(x);
- down(&ipcomp6_resource_sem);
+ mutex_lock(&ipcomp6_resource_mutex);
ipcomp6_free_data(ipcd);
- up(&ipcomp6_resource_sem);
+ mutex_unlock(&ipcomp6_resource_mutex);
kfree(ipcd);
xfrm6_tunnel_free_spi((xfrm_address_t *)&x->props.saddr);
@@ -436,14 +437,14 @@ static int ipcomp6_init_state(struct xfrm_state *x)
if (x->props.mode)
x->props.header_len += sizeof(struct ipv6hdr);
- down(&ipcomp6_resource_sem);
+ mutex_lock(&ipcomp6_resource_mutex);
if (!ipcomp6_alloc_scratches())
goto error;
ipcd->tfms = ipcomp6_alloc_tfms(x->calg->alg_name);
if (!ipcd->tfms)
goto error;
- up(&ipcomp6_resource_sem);
+ mutex_unlock(&ipcomp6_resource_mutex);
if (x->props.mode) {
err = ipcomp6_tunnel_attach(x);
@@ -459,10 +460,10 @@ static int ipcomp6_init_state(struct xfrm_state *x)
out:
return err;
error_tunnel:
- down(&ipcomp6_resource_sem);
+ mutex_lock(&ipcomp6_resource_mutex);
error:
ipcomp6_free_data(ipcd);
- up(&ipcomp6_resource_sem);
+ mutex_unlock(&ipcomp6_resource_mutex);
kfree(ipcd);
goto out;