From: Antoine Tenart Subject: [PATCH 05/11] crypto: sun4i-ss: do not dynamically set parts of the last buffer to 0 Date: Wed, 24 May 2017 21:06:46 +0200 Message-ID: <20170524190652.13278-6-antoine.tenart@free-electrons.com> References: <20170524190652.13278-1-antoine.tenart@free-electrons.com> Cc: Antoine Tenart , linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org To: herbert@gondor.apana.org.au, davem@davemloft.net, maxime.ripard@free-electrons.com, wens@csie.org, clabbe.montjoie@gmail.com Return-path: Received: from mail.free-electrons.com ([62.4.15.54]:50317 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937720AbdEXV1U (ORCPT ); Wed, 24 May 2017 17:27:20 -0400 In-Reply-To: <20170524190652.13278-1-antoine.tenart@free-electrons.com> Sender: linux-crypto-owner@vger.kernel.org List-ID: Parts of the bf buffer were dynamically set to 0. Change this to set the whole buffer to 0 by default to avoid any mistake. Signed-off-by: Antoine Tenart --- drivers/crypto/sunxi-ss/sun4i-ss-hash.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c index bc3cbde07219..518bc7a7df6a 100644 --- a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c +++ b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c @@ -179,7 +179,7 @@ static int sun4i_hash(struct ahash_request *areq) */ unsigned int i = 0, end, index, padlen, nwait, nbw = 0, j = 0, todo; unsigned int in_i = 0; - u32 spaces, rx_cnt = SS_RX_DEFAULT, bf[32], wb = 0, v, ivmode = 0; + u32 spaces, rx_cnt = SS_RX_DEFAULT, bf[32] = {0}, wb = 0, v, ivmode = 0; struct sun4i_req_ctx *op = ahash_request_ctx(areq); struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); struct sun4i_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm); @@ -417,7 +417,6 @@ static int sun4i_hash(struct ahash_request *areq) zeros = (padlen - 1) / 4; } - memset(bf + j, 0, 4 * zeros); j += zeros; /* write the length of data */ -- 2.9.4