usb: idmouse: fix an uninit-value in idmouse_open
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.331 by commit b3304a6df957cc89a0590cb505388d659bf3db4c. For more details please see the references link.