USB: serial: use generic method if no alternative is provided in usb serial layer
This patch makes use of the generic method if a serial driver provides
no implementation. This simplifies implementing suspend/resume support
in serial drivers.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index c6aaa6d..18f9408 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1085,12 +1085,15 @@
int usb_serial_resume(struct usb_interface *intf)
{
struct usb_serial *serial = usb_get_intfdata(intf);
+ int rv;
serial->suspending = 0;
if (serial->type->resume)
- return serial->type->resume(serial);
+ rv = serial->type->resume(serial);
+ else
+ rv = usb_serial_generic_resume(serial);
- return 0;
+ return rv;
}
EXPORT_SYMBOL(usb_serial_resume);