linux-kernel - Re: at25 eeprom driver: NULL pointer dereference (bisected to af40d16042d6 ("Merge v5.15-rc5 into char-misc-next"))

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Message-ID: <20220126193816.GA3763305@maple.netwinder.org>
Date:   Wed, 26 Jan 2022 14:38:16 -0500
From:   Ralph Siemsen <ralph.siemsen@...aro.org>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: at25 eeprom driver: NULL pointer dereference (bisected to
 af40d16042d6 ("Merge v5.15-rc5 into char-misc-next"))

Hi Christophe,

On Wed, Jan 26, 2022 at 07:18:42PM +0000, Christophe Leroy wrote:
>Getting below Oops on boot.
>
>v5.16 is OK, v5.17-rc1 has the problem
>
>Bisected to af40d16042d6 ("Merge v5.15-rc5 into char-misc-next"), bisect
>log after the oops dump.
>
>I'm a bit puzzled to end up on a merge commit, that commit doesn't show
>any diff with 'git show' but has a huge list of changes with 'git show
>--stat'. I must be missing something.

There is a mistake in the merge commit. The fix is here:
https://lore.kernel.org/all/20220118182003.3385019-1-keescook@chromium.org/

Regards,
-Ralph