torvalds/linux
torvalds/linux
2
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Code

USB: g_printer: fix bug in unregistration

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/gadget/printer.c
View File

@ -1594,7 +1594,7 @@ cleanup(void)
if (status) if (status)
ERROR(dev, "usb_gadget_unregister_driver %x\n", 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); class_destroy(usb_gadget_class);
mutex_unlock(&usb_printer_gadget.lock_printer_io); mutex_unlock(&usb_printer_gadget.lock_printer_io);
} }