linux-kernel - Re: [PATCH v1] KVM: kvm_io_bus_unregister

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Message-ID: <a1bbe002-da95-1a05-5055-7212e7606652@redhat.com>
Date:   Thu, 23 Mar 2017 18:15:05 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Cornelia Huck <cornelia.huck@...ibm.com>
Cc:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        rkrcmar@...hat.com, Dmitry Vyukov <dvyukov@...gle.com>,
        Marcelo Tosatti <mtosatti@...hat.com>, stable@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] KVM: kvm_io_bus_unregister_dev() should never fail


> 
> Either that, or an early exit for bus == NULL in kvm_io_bus_destroy().
> (I think the second option is more straightforward.)

I prefer to have the checks where kvm->buses[x] is actually accessed. So
the chance of missing yet another check is easier to verify.

Will send out v2 in a couple of minutes. Thanks!

-- 

Thanks,

David