linux-kernel - Re: [PATCH 2/2] MPI: Fix mpi_powm() when exponent is 0 and the result has no limbs

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Message-ID: <5323.1479986239@warthog.procyon.org.uk>
Date:   Thu, 24 Nov 2016 11:17:19 +0000
From:   David Howells <dhowells@...hat.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     dhowells@...hat.com, jmorris@...ei.org,
        Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        linux-ima-devel@...ts.sourceforge.net
Subject: Re: [PATCH 2/2] MPI: Fix mpi_powm() when exponent is 0 and the result has no limbs

David Howells <dhowells@...hat.com> wrote:

> +		if (!rp) {
> +			if (mpi_resize(res, 1) < 0)

This is better done with RESIZE_IF_NEEDED().

David