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Date:   Tue, 19 Feb 2019 13:16:09 -0800 (PST)
From:   David Miller <>
Subject: Re: [PATCH net V2] vhost: correctly check the return value of
 translate_desc() in log_used()

From: Jason Wang <>
Date: Tue, 19 Feb 2019 14:53:44 +0800

> 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.
> Detected by CoverityScan, CID# 1442593:  Control flow issues  (DEADCODE)
> Fixes: cc5e71075947 ("vhost: log dirty page correctly")
> Acked-by: Michael S. Tsirkin <>
> Reported-by: Stephen Hemminger <>
> Signed-off-by: Jason Wang <>

Applied and queued up for -stable, thanks.

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