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net/route: Fix an error in cache list management.

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This commit is contained in:
Gregory Nutt 2017-10-02 08:10:12 -06:00
parent 152164dcaf
commit 6ccb974910
1 changed files with 30 additions and 30 deletions
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60
net/route/net_cacheroute.c
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@ -577,24 +577,24 @@ int net_addcache_ipv4(FAR struct net_route_ipv4_s *route)
* list, then do nothing. It is already the most recently used.
*/
if (prev == NULL)
{
net_unlock_ipv4_cache();
return OK;
}
if (prev == NULL)
{
net_unlock_ipv4_cache();
return OK;
}
/* Otherwise, remove the cache entry from the list */
/* Otherwise, remove the cache entry from the middle or end of
* the list.
*/
if (g_ipv4_cache.tail == cache)
{
g_ipv4_cache.tail = prev;
}
else
{
prev->flink = cache->flink;
}
prev->flink = cache->flink;
if (g_ipv4_cache.tail == cache)
{
g_ipv4_cache.tail = prev;
}
cache->flink = NULL;
cache->flink = NULL;
break;
}
}
@ -657,24 +657,24 @@ int net_addcache_ipv6(FAR struct net_route_ipv6_s *route)
* list, then do nothing. It is already the most recently used.
*/
if (prev == NULL)
{
net_unlock_ipv6_cache();
return OK;
}
if (prev == NULL)
{
net_unlock_ipv6_cache();
return OK;
}
/* Otherwise, remove the cache entry from the list */
/* Otherwise, remove the cache entry from the middle or end of
* the list.
*/
if (g_ipv6_cache.tail == cache)
{
g_ipv6_cache.tail = prev;
}
else
{
prev->flink = cache->flink;
}
prev->flink = cache->flink;
if (g_ipv6_cache.tail == cache)
{
g_ipv6_cache.tail = prev;
}
cache->flink = NULL;
cache->flink = NULL;
break;
}
}