diff options
| -rw-r--r-- | drivers/usb/serial/usb_wwan.c | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 2ab478b55759..c5b9deb2e04e 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -388,6 +388,14 @@ int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port) portdata = usb_get_serial_port_data(port); intfdata = serial->private; + if (port->interrupt_in_urb) { + err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); + if (err) { + dev_dbg(&port->dev, "%s: submit int urb failed: %d\n", + __func__, err); + } + } + /* Start reading from the IN endpoint */ for (i = 0; i < N_IN_URB; i++) { urb = portdata->in_urbs[i]; @@ -454,6 +462,7 @@ void usb_wwan_close(struct usb_serial_port *port) usb_kill_urb(portdata->in_urbs[i]); for (i = 0; i < N_OUT_URB; i++) usb_kill_urb(portdata->out_urbs[i]); + usb_kill_urb(port->interrupt_in_urb); /* balancing - important as an error cannot be handled*/ usb_autopm_get_interface_no_resume(serial->interface); @@ -487,7 +496,6 @@ int usb_wwan_port_probe(struct usb_serial_port *port) struct usb_wwan_port_private *portdata; struct urb *urb; u8 *buffer; - int err; int i; if (!port->bulk_in_size || !port->bulk_out_size) @@ -527,13 +535,6 @@ int usb_wwan_port_probe(struct usb_serial_port *port) usb_set_serial_port_data(port, portdata); - if (port->interrupt_in_urb) { - err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); - if (err) - dev_dbg(&port->dev, "%s: submit irq_in urb failed %d\n", - __func__, err); - } - return 0; bail_out_error2: @@ -651,22 +652,6 @@ int usb_wwan_resume(struct usb_serial *serial) struct urb *urb; int err = 0; - /* get the interrupt URBs resubmitted unconditionally */ - for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - if (!port->interrupt_in_urb) { - dev_dbg(&port->dev, "%s: No interrupt URB for port\n", __func__); - continue; - } - err = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO); - dev_dbg(&port->dev, "Submitted interrupt URB for port (result %d)\n", err); - if (err < 0) { - dev_err(&port->dev, "%s: Error %d for interrupt URB\n", - __func__, err); - goto err_out; - } - } - spin_lock_irq(&intfdata->susp_lock); for (i = 0; i < serial->num_ports; i++) { /* walk all ports */ @@ -677,6 +662,16 @@ int usb_wwan_resume(struct usb_serial *serial) if (!portdata || !portdata->opened) continue; + if (port->interrupt_in_urb) { + err = usb_submit_urb(port->interrupt_in_urb, + GFP_ATOMIC); + if (err) { + dev_err(&port->dev, + "%s: submit int urb failed: %d\n", + __func__, err); + } + } + for (j = 0; j < N_IN_URB; j++) { urb = portdata->in_urbs[j]; err = usb_submit_urb(urb, GFP_ATOMIC); |