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

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Date:   Mon, 17 Dec 2018 12:41:41 +0100
From:   Petr Mladek <pmladek@...e.com>
To:     Nicholas Mc Guire <hofrat@...dl.org>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>, Jessica Yu <jeyu@...nel.org>,
        Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>, live-patching@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] livepatch: check kzalloc return values

On Fri 2018-12-14 17:56:10, 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")

It is a bit confusing that it was not re-send together with v2
of the other patch. It should not get lost!

Reviewed-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr