linux-kernel - Re: [PATCH 1/2] mm: cma: fix the name of CMA areas

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Message-ID: <7b533da9-f321-cb2d-b960-37dc7b8885a9@oracle.com>
Date:   Wed, 3 Jun 2020 10:27:03 -0700
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Barry Song <song.bao.hua@...ilicon.com>, akpm@...ux-foundation.org
Cc:     guro@...com, linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linuxarm@...wei.com
Subject: Re: [PATCH 1/2] mm: cma: fix the name of CMA areas

On 6/3/20 1:40 AM, Barry Song wrote:
> if users give a name saved in stack, the current code will generate magic
> pointer.
> if users don't give a name(NULL), kasprintf() will always return NULL as
> we are at the early stage. that means cma_init_reserved_mem() will return
> -ENOMEM if users set name parameter as NULL.
> 
> Cc: Roman Gushchin <guro@...com>
> Signed-off-by: Barry Song <song.bao.hua@...ilicon.com>

Thank you

Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>

-- 
Mike Kravetz