Re: [PATCH v2] KVM: x86: fix for missing initialization of return status variable

[Sean Christopherson]

On Mon, Dec 06, 2021, Ameer Hamza wrote:
> If undefined ioctl number is passed to the kvm_vcpu_ioctl_device_attr
> function, it should return with error status.

No, if anything KVM should do KVM_BUG_ON() and return -EIO, because @ioctl is
completely KVM controlled.  But I'd personally prefer we leave it as is, there's
one call site that very clearly invokes the helper with only the three ioctls.
It's not a strong preference though.