linux-kernel - Re: linux-next: build warning after merge of the btrfs tree

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Message-ID: <20200224143429.GR2902@suse.cz>
Date:   Mon, 24 Feb 2020 15:34:29 +0100
From:   David Sterba <dsterba@...e.cz>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Johannes Thumshirn <johannes.thumshirn@....com>
Subject: Re: linux-next: build warning after merge of the btrfs tree

On Mon, Feb 24, 2020 at 09:57:35AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the btrfs tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
> 
> fs/btrfs/check-integrity.c: In function 'btrfsic_process_superblock_dev_mirror':
> fs/btrfs/check-integrity.c:916:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
>   916 |  return ret;
>       |         ^~~
> 
> Introduced by commit
> 
>   5a03d907a555 ("btrfs: remove buffer_heads form super block mirror integrity checking")
> 
> I think this is not a false positive since ret is only assigned is a
> "goto out" is executed.

Yes that sounds correct, will be fixed in next update, thanks.