Re: [PATCH net] vhost: correctly check the return value of translate_desc() in log_used()

[Jason Wang]

On 2019/2/16 上午2:03, David Miller wrote:

From: Jason Wang<jasow...@redhat.com>
Date: Fri, 15 Feb 2019 15:53:24 +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.

Reported-by: Stephen Hemminger<step...@networkplumber.org>
Fixes: cc5e71075947 ("vhost: log dirty page correctly")
Signed-off-by: Jason Wang<jasow...@redhat.com>

Jason, please put the Fixes tag first.

Thank you.

Ok. Will post V2.

Thanks