devlink: fix netns refcount leak in devlinknlcmd_reload()
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 v5.15.8 by commit fe30b70ca84da9c4aca85c03ad86e7a9b89c5ded, it was introduced in version v5.10 by commit ccdf07219da6bd1f43c6ddcde4c0e36993c7365a. For more details please see the references link.