diff --git a/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c b/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c index d27878158cd..64421e01f3a 100644 --- a/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c +++ b/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c @@ -481,7 +481,8 @@ int mode; } SPL_NET(s); - READ_ENTER(&ipf_global); + if (fr_running > 0) + READ_ENTER(&ipf_global); error = fr_ioctlswitch(unit, data, cmd, mode); if (error != -1) { @@ -514,7 +515,10 @@ int mode; else (void) ipldetach(); } else { - error = ipldetach(); + if (fr_running <= 0) + error = 0; + else + error = ipldetach(); if (error == 0) fr_running = -1; } @@ -627,7 +631,9 @@ int mode; break; } - RWLOCK_EXIT(&ipf_global); + if (fr_running > 0) + if (mtx_owned(&(&ipf_global)->ipf_lk)) + RWLOCK_EXIT(&ipf_global); SPL_X(s); return error;