linux-kernel - Re: [PATCH] ovl: fix ovl

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Message-ID: <CAOQ4uxh-EDu=Y+BVfVsve6xDwYsQuHJhx19f=LMpF72LRhow8g@mail.gmail.com>
Date:   Thu, 18 May 2017 16:57:33 +0300
From:   Amir Goldstein <amir73il@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Miklos Szeredi <miklos@...redi.hu>,
        "open list:OVERLAY FILESYSTEM" <linux-unionfs@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ovl: fix ovl_rename error handling

On Thu, May 18, 2017 at 4:34 PM, Arnd Bergmann <arnd@...db.de> wrote:
> We try to clean up two objects before they got initialized:
>
> fs/overlayfs/dir.c: In function 'ovl_rename':
> fs/overlayfs/dir.c:1060:2: error: 'newdentry' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> fs/overlayfs/dir.c:891:17: note: 'newdentry' was declared here
> fs/overlayfs/dir.c:1062:2: error: 'olddentry' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> fs/overlayfs/dir.c:890:17: note: 'olddentry' was declared here
>
> Assuming that no special cleanup is required for the new code, the correct
> branch target should be "out_revert_creds" to clean up everything that
> got initialized up to then.
>

Yep, this is correct. You are the 4th to send this patch :)
Thanks