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 v4.14.276 by commit 40bf32dbfef866c83a3e74800b81d79e52b6d20b. For more details please see the references link.