wifi: libertas: Fix possible refcount leak in ifusbprobe()
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 v4.14.291 by commit 61b2ec97487399c58ae2e34f250f4884e671799b, it was introduced in version v3.5 by commit ce84bb69f50e6f6cfeabc9b965365290f4184417. For more details please see the references link.