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

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Message-ID: <20180730073030.GD7615@w540>
Date:   Mon, 30 Jul 2018 09:30:30 +0200
From:   jacopo mondi <jacopo@...ndi.org>
To:     Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jacopo Mondi <jacopo+renesas@...ndi.org>
Subject: Re: linux-next: build warning after merge of the pm tree

Hi,

On Mon, Jul 30, 2018 at 10:24:45AM +0300, Sakari Ailus wrote:
> Hi folks,
>
> On Mon, Jul 30, 2018 at 12:00:53PM +1000, Stephen Rothwell wrote:
> > Hi Rafael,
> >
> > After merging the pm tree, today's linux-next build (x86_64 allmodconfig)
> > produced this warning:
> >
> > drivers/media/i2c/mt9v111.c: In function 'mt9v111_set_format':
> > drivers/media/i2c/mt9v111.c:887:15: warning: 'idx' may be used uninitialized in this function [-Wmaybe-uninitialized]
> >   unsigned int idx;
> >                ^~~
> >
> > Introduced by commit
> >
> >   aab7ed1c3927 ("media: i2c: Add driver for Aptina MT9V111")
> >
> > Looks like a false positive, but not something that gcc can easily see.
>
> This must be coming from a new driver merged to media tree recently. Thanks
> for reporting this.
>

Yes, my bad, it is a false positive and I ignored it,
sorry about that. There is already a patch sent to linux-media to fix
this on top of the driver.

https://patchwork.kernel.org/patch/10547983/

Thanks
   j

> --
> Regards,
>
> Sakari Ailus
> sakari.ailus@...ux.intel.com

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