diff options
| -rw-r--r-- | sys/netinet/tcp_hostcache.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/netinet/tcp_hostcache.c b/sys/netinet/tcp_hostcache.c index 770723798176..e3350009abb8 100644 --- a/sys/netinet/tcp_hostcache.c +++ b/sys/netinet/tcp_hostcache.c @@ -351,7 +351,13 @@ tcp_hc_insert(struct in_conninfo *inc) * efficient. Instead just reuse the least used element. * We may drop something that is still "in-use" but we can be * "lossy". + * Just give up if this bucket row is empty and we don't have + * anything to replace. */ + if (hc_entry == NULL) { + THC_UNLOCK(&hc_head->hch_mtx); + return NULL; + } TAILQ_REMOVE(&hc_head->hch_bucket, hc_entry, rmx_q); tcp_hostcache.hashbase[hash].hch_length--; tcp_hostcache.cache_count--; |