rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev
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 v5.4.176 by commit da27b834c1e0222e149e06caddf7718478086d1b, it was introduced in version v4.11 by commit c0cdc19f84a4712cf74888f83af286e3c2e14efd. For more details please see the references link.