yam: fix a memory leak in yam_siocdevprivate()
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 v4.14.265 by commit 4bbdfb71d2898a9d6e777a948a7484903a4ad2c3, it was introduced in version v4.14.79 by commit d0539c56391d449603f7ff2bcddf38995df49749. For more details please see the references link.