Re: usbserial not working/oops on removal

From: Oliver Neukum
Date: Sat Mar 03 2007 - 05:38:51 EST


Am Samstag, 3. MÃrz 2007 08:19 schrieb Andreas Laumann:
> Am Samstag, den 03.03.2007, 07:45 +0100 schrieb Oliver Neukum:
> > Am Samstag, 3. MÃrz 2007 03:37 schrieb Kevin Fenzi:
> > > I'm seeing some oddity with the latest fedora development kernel and a
> > > usbserial device.
> >
> > Very interesting. Is this repeatable? Does unplugging have the same effect?
>
> I see it also on fedora rawhide using reinersct (cyberjack) scard
> readers and it repeatable.
> The first usbserial devices likes to register the line number 255 which
> indeed is invalid.

OK, please try this patch.

Regards
Oliver

--- linux-2.6.21-rc1/drivers/usb/serial/usb-serial.c.alt 2007-02-21 05:32:30.000000000 +0100
+++ linux-2.6.21-rc1/drivers/usb/serial/usb-serial.c 2007-02-26 15:32:50.000000000 +0100
@@ -826,7 +826,6 @@
num_ports = type->num_ports;
}

- serial->minor = minor;
serial->num_ports = num_ports;
serial->num_bulk_in = num_bulk_in;
serial->num_bulk_out = num_bulk_out;
@@ -980,6 +979,7 @@
dev_err(&interface->dev, "No more free serial devices\n");
goto probe_error;
}
+ serial->minor = minor;

/* register all of the individual ports with the driver core */
for (i = 0; i < num_ports; ++i) {
-
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