linux-hardening - Re: [PATCH 5/6] driver core: Add __alloc

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Message-ID: <Y9qyTLmfdD2lR+YU@smile.fi.intel.com>
Date:   Wed, 1 Feb 2023 20:41:16 +0200
From:   Andy Shevchenko <andriy.shevchenko@...el.com>
To:     John Stultz <jstultz@...gle.com>
Cc:     Yongqin Liu <yongqin.liu@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rasmus Villemoes <rasmus.villemoes@...vas.dk>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Gunthorpe <jgg@...pe.ca>, Nishanth Menon <nm@...com>,
        Michael Kelley <mikelley@...rosoft.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Won Chung <wonchung@...gle.com>,
        David Gow <davidgow@...gle.com>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Hyeonggon Yoo <42.hyeyoo@...il.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-hardening@...r.kernel.org,
        llvm@...ts.linux.dev, Sumit Semwal <sumit.semwal@...aro.org>
Subject: Re: [PATCH 5/6] driver core: Add __alloc_size hint to devm allocators

On Wed, Feb 01, 2023 at 12:11:41AM -0800, John Stultz wrote:
> On Tue, Jan 31, 2023 at 11:36 PM Yongqin Liu <yongqin.liu@...aro.org> wrote:

...

> data->nr_sensors = 1;
> data->sensor = devm_kzalloc(dev, sizeof(*data->sensor) *
>    data->nr_sensors, GFP_KERNEL);

Side note: This should use devm_kcalloc().

-- 
With Best Regards,
Andy Shevchenko