drm/amdkfd: Check for potential null return of kmalloc_array()
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 v5.4.190 by commit c7a268b33882d5feaafd29c1734456f41ba41396. For more details please see the references link.