diff options
| -rw-r--r-- | hurd/privports.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/hurd/privports.c b/hurd/privports.c index 018b2ddee1..5d3232b214 100644 --- a/hurd/privports.c +++ b/hurd/privports.c @@ -28,7 +28,8 @@ kern_return_t __get_privileged_ports (host_priv_t *host_priv_ptr, device_t *device_master_ptr) { - if (! _hurd_host_priv) + if ((host_priv_ptr && _hurd_host_priv == MACH_PORT_NULL) + || (device_master_ptr && _hurd_device_master == MACH_PORT_NULL)) { error_t err; @@ -47,16 +48,24 @@ __get_privileged_ports (host_priv_t *host_priv_ptr, if (host_priv_ptr) { - __mach_port_mod_refs (mach_task_self (), - _hurd_host_priv, MACH_PORT_RIGHT_SEND, 1); + error_t err = _hurd_host_priv == MACH_PORT_NULL ? 0 + : __mach_port_mod_refs (mach_task_self (), + _hurd_host_priv, MACH_PORT_RIGHT_SEND, +1); + if (err) + return err; *host_priv_ptr = _hurd_host_priv; } + if (device_master_ptr) { - __mach_port_mod_refs (mach_task_self (), - _hurd_device_master, MACH_PORT_RIGHT_SEND, 1); + error_t err = _hurd_device_master == MACH_PORT_NULL ? 0 + : __mach_port_mod_refs (mach_task_self (), + _hurd_device_master, MACH_PORT_RIGHT_SEND, +1); + if (err) + return err; *device_master_ptr = _hurd_device_master; } + return KERN_SUCCESS; } weak_alias (__get_privileged_ports, get_privileged_ports) |