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

On 2019/2/16 上午2:03, David Miller wrote:
> From: Jason Wang<>
> 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<>
>> Fixes: cc5e71075947 ("vhost: log dirty page correctly")
>> Signed-off-by: Jason Wang<>
> Jason, please put the Fixes tag first.
> Thank you.

Ok. Will post V2.


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