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Re: [PATCH for-5.2?] nbd: Silence Coverity false positive
From: |
Richard Henderson |
Subject: |
Re: [PATCH for-5.2?] nbd: Silence Coverity false positive |
Date: |
Thu, 12 Nov 2020 13:18:03 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 11/12/20 1:09 PM, Eric Blake wrote:
> On 11/12/20 3:04 PM, Richard Henderson wrote:
>> On 11/11/20 8:35 AM, Eric Blake wrote:
>>> - if (!full) {
>>> - /* last non dirty extent */
>>> - nbd_extent_array_add(es, end - start, 0);
>>> + if (!full && nbd_extent_array_add(es, end - start, 0) < 0) {
>>> + /* last non dirty extent, nothing to do if array was already full
>>> */
>>> }
>>
>> Casting to (void) is another way to get rid of the warning.
>>
>> I dunno which makes more sense here. Definitely the comment is helpful.
>
> As in:
>
> if (!full) {
> /* last non dirty extent, nothing to do if array is now full */
> (void) nbd_extent_array_add(es, end - start, 0);
> }
Yep.
> Yeah, that looks a little better. Should I post that as v2, or wait for
> further comments on this?
Up to you. You can have my
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
for either version.
r~