USB: serial: introduce a flag into the usb serial layer to tell drivers that their URBs are killed due to suspension
This patch introduces a flag into the usb serial layer to tell drivers
that their URBs are killed due to suspension. That is necessary to let
drivers know whether they should report an error back.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Hi Greg,
this is for 2.6.30. Patches to use this in drivers are under development.
Regards
Oliver
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index cfcfd5a..c6aaa6d 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1067,6 +1067,8 @@
struct usb_serial_port *port;
int i, r = 0;
+ serial->suspending = 1;
+
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
@@ -1084,8 +1086,10 @@
{
struct usb_serial *serial = usb_get_intfdata(intf);
+ serial->suspending = 0;
if (serial->type->resume)
return serial->type->resume(serial);
+
return 0;
}
EXPORT_SYMBOL(usb_serial_resume);