watchdog: Fix possible use-after-free in wdt_startup()
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 v5.13.4 by commit 8adbbe6c86bb13e14f8a19e036ae5f4f5661fd90. For more details please see the references link.