diff options
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/user_mad.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 52ebb1711d14..0204a4fefd13 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -1244,17 +1244,11 @@ static void ib_umad_kill_port(struct ib_umad_port *port) struct ib_umad_file *file; int id; - dev_set_drvdata(port->dev, NULL); - dev_set_drvdata(port->sm_dev, NULL); - - device_destroy(&umad_class, port->cdev.dev); - device_destroy(&umad_class, port->sm_cdev.dev); - - cdev_del(&port->cdev); - cdev_del(&port->sm_cdev); - mutex_lock(&port->file_mutex); + /* Mark ib_dev NULL and block ioctl or other file ops to progress + * further. + */ port->ib_dev = NULL; list_for_each_entry(file, &port->file_list, port_list) { @@ -1268,6 +1262,16 @@ static void ib_umad_kill_port(struct ib_umad_port *port) } mutex_unlock(&port->file_mutex); + + dev_set_drvdata(port->dev, NULL); + dev_set_drvdata(port->sm_dev, NULL); + + device_destroy(&umad_class, port->cdev.dev); + device_destroy(&umad_class, port->sm_cdev.dev); + + cdev_del(&port->cdev); + cdev_del(&port->sm_cdev); + ida_free(&umad_ida, port->dev_num); } |