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Re: [PATCH] kvm: svm: fix unsigned compare less than zero comparison

From Joerg Roedel <joro@8bytes.org>
Newsgroups linux.kernel
Subject Re: [PATCH] kvm: svm: fix unsigned compare less than zero comparison
Date 2016-09-19 12:10 +0200
Message-ID <sj3Gq-43G-17@gated-at.bofh.it> (permalink)
References <sj05Q-1Oq-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Sep 19, 2016 at 07:11:59AM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> vm_data->avic_vm_id is a u32, so the check for a error
> return (less than zero) such as -EAGAIN from
> avic_get_next_vm_id currently has no effect whatsoever.
> Fix this by using a temporary int for the comparison
> and assign vm_data->avic_vm_id to this. I used an explicit
> u32 cast in the assignment to show why vm_data->avic_vm_id
> cannot be used in the assign/compare steps.
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Acked-by: Joerg Roedel <jroedel@suse.de>

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Thread

[PATCH] kvm: svm: fix unsigned compare less than zero comparison Colin King <colin.king@canonical.com> - 2016-09-19 08:20 +0200
  Re: [PATCH] kvm: svm: fix unsigned compare less than zero comparison Joerg Roedel <joro@8bytes.org> - 2016-09-19 12:10 +0200
  Re: [PATCH] kvm: svm: fix unsigned compare less than zero comparison Paolo Bonzini <pbonzini@redhat.com> - 2016-09-19 13:30 +0200

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