summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorFabian Godehardt <fg@emlix.com>2011-09-01 14:15:46 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-11-11 09:42:37 -0800
commit17195239b64caba1522ddebe5210b804bbb37d74 (patch)
treec854327800a89223163c02312ad01e05a2a6aacb
parentaa5f85cae9e4d36ba4c53d6cdd5bc3640c7f581a (diff)
USB: g_printer: fix bug in unregistration
commit 8582d86143c690c68cc42f996def466a035bee34 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/gadget/printer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index a341dde6f9c3..0c06d8000ef1 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -1611,7 +1611,7 @@ 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);
}