platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
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 v4.19.192 by commit 75cfc833da4a2111106d4c134e93e0c7f41e35e7, it was introduced in version v4.15 by commit 1a258e670434f404a4500b65ba1afea2c2b29bba. For more details please see the references link.