linux-kernel - Re: [PATCH 2/2] livepatch: check kzalloc return values

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Message-ID: <alpine.LSU.2.21.1812171243160.3087@pobox.suse.cz>
Date:   Mon, 17 Dec 2018 12:43:51 +0100 (CET)
From:   Miroslav Benes <mbenes@...e.cz>
To:     Nicholas Mc Guire <hofrat@...dl.org>
cc:     Josh Poimboeuf <jpoimboe@...hat.com>, Jessica Yu <jeyu@...nel.org>,
        Jiri Kosina <jikos@...nel.org>, Petr Mladek <pmladek@...e.com>,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] livepatch: check kzalloc return values

On Fri, 14 Dec 2018, Nicholas Mc Guire wrote:

> kzalloc() return should always be checked - notably in example code
> where this may be seen as reference. On failure of allocation in
> livepatch_fix1_dummy_alloc() respectively dummy_alloc() previous
> allocation is freed (thanks to Petr Mladek <pmladek@...e.com> for
> catching this) and NULL returned.
> 
> Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
> Fixes: 439e7271dc2b ("livepatch: introduce shadow variable API")

Acked-by: Miroslav Benes <mbenes@...e.cz>

M