From: David Miller <davem@davemloft.net>
To: jasowang@redhat.com
Cc: mst@redhat.com, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net V2] vhost: correctly check the return value of translate_desc() in log_used()
Date: Tue, 19 Feb 2019 13:16:09 -0800 (PST) [thread overview]
Message-ID: <20190219.131609.2179516387888671292.davem@davemloft.net> (raw)
In-Reply-To: <20190219065344.24923-1-jasowang@redhat.com>
From: Jason Wang <jasowang@redhat.com>
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 <mst@redhat.com>
> Reported-by: Stephen Hemminger <stephen@networkplumber.org>
> Signed-off-by: Jason Wang <jasowang@redhat.com>
Applied and queued up for -stable, thanks.
prev parent reply other threads:[~2019-02-19 21:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-19 6:53 [PATCH net V2] vhost: correctly check the return value of translate_desc() in log_used() Jason Wang
2019-02-19 21:16 ` David Miller [this message]
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