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authorJaroslav Kysela <perex@suse.cz>2006-03-22 05:02:08 -0500
committerJaroslav Kysela <perex@suse.cz>2006-03-22 05:02:08 -0500
commit5501972e0b5857bc8354770d900ceb9b40c7f6b7 (patch)
treeff239422827c4cd54d2998f8851304255de31b38 /net/ipv6/xfrm6_tunnel.c
parent9d2f928ddf64ca0361562e30faf584cd33055c60 (diff)
parente952f31bce6e9f64db01f607abc46529ba57ac9e (diff)
Merge with rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
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 8cfc58b96fc2..08f9abbdf1d7 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -31,6 +31,7 @@
31#include <net/protocol.h> 31#include <net/protocol.h>
32#include <linux/ipv6.h> 32#include <linux/ipv6.h>
33#include <linux/icmpv6.h> 33#include <linux/icmpv6.h>
34#include <linux/mutex.h>
34 35
35#ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG 36#ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG
36# define X6TDEBUG 3 37# define X6TDEBUG 3
@@ -357,19 +358,19 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct xfrm_decap_state *dec
357} 358}
358 359
359static struct xfrm6_tunnel *xfrm6_tunnel_handler; 360static struct xfrm6_tunnel *xfrm6_tunnel_handler;
360static DECLARE_MUTEX(xfrm6_tunnel_sem); 361static DEFINE_MUTEX(xfrm6_tunnel_mutex);
361 362
362int xfrm6_tunnel_register(struct xfrm6_tunnel *handler) 363int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
363{ 364{
364 int ret; 365 int ret;
365 366
366 down(&xfrm6_tunnel_sem); 367 mutex_lock(&xfrm6_tunnel_mutex);
367 ret = 0; 368 ret = 0;
368 if (xfrm6_tunnel_handler != NULL) 369 if (xfrm6_tunnel_handler != NULL)
369 ret = -EINVAL; 370 ret = -EINVAL;
370 if (!ret) 371 if (!ret)
371 xfrm6_tunnel_handler = handler; 372 xfrm6_tunnel_handler = handler;
372 up(&xfrm6_tunnel_sem); 373 mutex_unlock(&xfrm6_tunnel_mutex);
373 374
374 return ret; 375 return ret;
375} 376}
@@ -380,13 +381,13 @@ int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
380{ 381{
381 int ret; 382 int ret;
382 383
383 down(&xfrm6_tunnel_sem); 384 mutex_lock(&xfrm6_tunnel_mutex);
384 ret = 0; 385 ret = 0;
385 if (xfrm6_tunnel_handler != handler) 386 if (xfrm6_tunnel_handler != handler)
386 ret = -EINVAL; 387 ret = -EINVAL;
387 if (!ret) 388 if (!ret)
388 xfrm6_tunnel_handler = NULL; 389 xfrm6_tunnel_handler = NULL;
389 up(&xfrm6_tunnel_sem); 390 mutex_unlock(&xfrm6_tunnel_mutex);
390 391
391 synchronize_net(); 392 synchronize_net();
392 393