PNP: fix name memory leak in pnpallocdev()
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 v4.9.337 by commit ea77b4b761cd75e5456f677311babfa0418f289a, it was introduced in version v2.6.30 by commit 1fa5ae857bb14f6046205171d98506d8112dd74e. For more details please see the references link.