linux-kernel - Re: [PATCH][next] scsi: target: fix unsigned comparision with less than zero

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Message-ID: <5C927543.2020907@redhat.com>
Date:   Wed, 20 Mar 2019 12:15:47 -0500
From:   Mike Christie <mchristi@...hat.com>
To:     Colin King <colin.king@...onical.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, target-devel@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] scsi: target: fix unsigned comparision with less
 than zero

On 03/20/2019 12:14 PM, Mike Christie wrote:
> On 03/20/2019 11:37 AM, Colin King wrote:
>> From: Colin Ian King <colin.king@...onical.com>
>>
>> Currently an error return is being assigned to an unsigned
>> size_t varianle and then checked if the result is less than
>> zero which will always be false.  Fix this by making ret
> 
> What kernel version was this made against?
> 
> For Martin's 5.2 queue branch, with these scsi changes it looks like
> strlcpy returns a size_t. And then below it looks like we compare the
> return value from that function to the buffer size and the max len of
> the string we support. We do not seem to check for less than zero.
> 
> 

My mistake. I was looking at len and not ret.

Patch looks ok to me.

Reviewed-by: Mike Christie <mchristi@...hat.com>