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USB: g_printer: fix bug in unregistration 

The allocated chardevice region range is only 1 device but on
unregister it currently tries to deregister 2.

Found this while doing a insmod/rmmod/insmod/rm... of the module
which seemed to eat major numbers.

Signed-off-by: Fabian Godehardt <fg@emlix.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Fabian Godehardt 2011-09-01 14:15:46 +02:00 committed by Greg Kroah-Hartman
parent fba9e546ea
commit 8582d86143
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/printer.c
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@ -1594,7 +1594,7 @@ cleanup(void)
if (status)
ERROR(dev, "usb_gadget_unregister_driver %x\n", status);
unregister_chrdev_region(g_printer_devno, 2);
unregister_chrdev_region(g_printer_devno, 1);
class_destroy(usb_gadget_class);
mutex_unlock(&usb_printer_gadget.lock_printer_io);
}