Commit 3fff3b43 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman

USB: serial: remove overly defensive port tests

The only way a port pointer may be NULL is if probe() failed, and in
that case neither disconnect(), resume(), or reset_resume() will be
called.
Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c14829fa
......@@ -1060,6 +1060,7 @@ static void usb_serial_disconnect(struct usb_interface *interface)
struct usb_serial *serial = usb_get_intfdata(interface);
struct device *dev = &interface->dev;
struct usb_serial_port *port;
struct tty_struct *tty;
usb_serial_console_disconnect(serial);
......@@ -1070,18 +1071,16 @@ static void usb_serial_disconnect(struct usb_interface *interface)
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port) {
struct tty_struct *tty = tty_port_tty_get(&port->port);
if (tty) {
tty_vhangup(tty);
tty_kref_put(tty);
}
usb_serial_port_poison_urbs(port);
wake_up_interruptible(&port->port.delta_msr_wait);
cancel_work_sync(&port->work);
if (device_is_registered(&port->dev))
device_del(&port->dev);
tty = tty_port_tty_get(&port->port);
if (tty) {
tty_vhangup(tty);
tty_kref_put(tty);
}
usb_serial_port_poison_urbs(port);
wake_up_interruptible(&port->port.delta_msr_wait);
cancel_work_sync(&port->work);
if (device_is_registered(&port->dev))
device_del(&port->dev);
}
if (serial->type->disconnect)
serial->type->disconnect(serial);
......@@ -1094,7 +1093,6 @@ static void usb_serial_disconnect(struct usb_interface *interface)
int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_serial *serial = usb_get_intfdata(intf);
struct usb_serial_port *port;
int i, r = 0;
serial->suspending = 1;
......@@ -1112,12 +1110,8 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
}
}
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
usb_serial_port_poison_urbs(port);
}
for (i = 0; i < serial->num_ports; ++i)
usb_serial_port_poison_urbs(serial->port[i]);
err_out:
return r;
}
......@@ -1125,14 +1119,10 @@ EXPORT_SYMBOL(usb_serial_suspend);
static void usb_serial_unpoison_port_urbs(struct usb_serial *serial)
{
struct usb_serial_port *port;
int i;
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
usb_serial_port_unpoison_urbs(port);
}
for (i = 0; i < serial->num_ports; ++i)
usb_serial_port_unpoison_urbs(serial->port[i]);
}
int usb_serial_resume(struct usb_interface *intf)
......
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