diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/serial/usb-wwan.h | 1 | ||||
| -rw-r--r-- | drivers/usb/serial/usb_wwan.c | 6 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h index 684739b8efd0..aca45efbd674 100644 --- a/drivers/usb/serial/usb-wwan.h +++ b/drivers/usb/serial/usb-wwan.h @@ -39,6 +39,7 @@ struct usb_wwan_intf_private { spinlock_t susp_lock; unsigned int suspended:1; int in_flight; + unsigned int open_ports; int (*send_setup) (struct usb_serial_port *port); void *private; }; diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index ab8c17536534..daaa5d795946 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -411,9 +411,10 @@ int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port) if (intfdata->send_setup) intfdata->send_setup(port); - serial->interface->needs_remote_wakeup = 1; spin_lock_irq(&intfdata->susp_lock); portdata->opened = 1; + if (++intfdata->open_ports == 1) + serial->interface->needs_remote_wakeup = 1; spin_unlock_irq(&intfdata->susp_lock); /* this balances a get in the generic USB serial code */ usb_autopm_put_interface(serial->interface); @@ -448,6 +449,8 @@ void usb_wwan_close(struct usb_serial_port *port) /* Stop reading/writing urbs */ spin_lock_irq(&intfdata->susp_lock); portdata->opened = 0; + if (--intfdata->open_ports == 0) + serial->interface->needs_remote_wakeup = 0; spin_unlock_irq(&intfdata->susp_lock); for (;;) { @@ -466,7 +469,6 @@ void usb_wwan_close(struct usb_serial_port *port) /* balancing - important as an error cannot be handled*/ usb_autopm_get_interface_no_resume(serial->interface); - serial->interface->needs_remote_wakeup = 0; } EXPORT_SYMBOL(usb_wwan_close); |