Subject: [PATCH 002/008] USB: serial: adding sierra_stop_rx_urbs() function
From: Elina Pasheva <epasheva@xxxxxxxxxxxxxxxxxx>
The following is summary of changes we have made to sierra.c driver in
[PATCH 002/008] from the series dealing with improving urb handling:
- Added function sierra_stop_rx_urbs() that takes care of the release of
receive and interrupt urbs. This function is to be called by sierra_close()
whenever an interface is de-activated.
Signed-off-by: Elina Pasheva <epasheva@xxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/sierra.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/drivers/usb/serial/sierra.c 2009-05-04 17:25:01.000000000 -0700
+++ b/drivers/usb/serial/sierra.c 2009-05-04 17:43:19.000000000 -0700
@@ -606,6 +606,17 @@ static int sierra_write_room(struct tty_
return 2048;
}
+static void sierra_stop_rx_urbs(struct usb_serial_port *port)
+{
+ int i;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+
+ for (i = 0; i < ARRAY_SIZE(portdata->in_urbs); i++)
+ usb_kill_urb(portdata->in_urbs[i]);
+
+ usb_kill_urb(port->interrupt_in_urb);
+}
+
static int sierra_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
--
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