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Date:   Fri, 15 Feb 2019 08:45:02 -0800
From:   Stephen Hemminger <>
To:     Jason Wang <>
Subject: Re: [PATCH net] vhost: correctly check the return value of
 translate_desc() in log_used()

On Fri, 15 Feb 2019 15:53:24 +0800
Jason Wang <> wrote:

> When fail, translate_desc() returns negative value, otherwise the
> number of iovs. So we should fail when the return value is negative
> instead of a blindly check against zero.
> Reported-by: Stephen Hemminger <>
> Fixes: cc5e71075947 ("vhost: log dirty page correctly")
> Signed-off-by: Jason Wang <>

Looks good. It is best to put the Addresses-Coverity-Id tag on these kind
of bug fixes so that the automated tools see it.

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