staging: greybus: uart: fix tty use after free
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 v4.9.285 by commit 92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d, it was introduced in version v4.9 by commit a18e15175708d39abbe9746ddc3479466b7800c3. For more details please see the references link.