Commit 8582d861 authored Sep 01, 2011 by Fabian Godehardt Committed by Greg Kroah-Hartman Sep 18, 2011

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>

parent fba9e546

drivers/usb/gadget/printer.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}

Admin message