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USB: fix wrong order of events in usb serial suspension

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if a subdriver has an additional suspend method, it must be called
first to allow the subdriver to return -EBUSY, because the second
half cannot be easily undone.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum 2009-07-21 08:47:34 +02:00 committed by Greg Kroah-Hartman
parent 807fcb5e19
commit 81e5b23cd2
1 changed files with 7 additions and 3 deletions
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10
drivers/usb/serial/usb-serial.c
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@ -1157,15 +1157,19 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
serial->suspending = 1;
if (serial->type->suspend) {
r = serial->type->suspend(serial, message);
if (r < 0)
goto err_out;
}
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
kill_traffic(port);
}
if (serial->type->suspend)
r = serial->type->suspend(serial, message);
err_out:
return r;
}
EXPORT_SYMBOL(usb_serial_suspend);