From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1402DC07E9B for ; Mon, 12 Jul 2021 06:35:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F152161175 for ; Mon, 12 Jul 2021 06:35:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237193AbhGLGi0 (ORCPT ); Mon, 12 Jul 2021 02:38:26 -0400 Received: from mail.kernel.org ([198.145.29.99]:46026 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236060AbhGLG3n (ORCPT ); Mon, 12 Jul 2021 02:29:43 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5AF94601FC; Mon, 12 Jul 2021 06:26:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626071209; bh=q3I87XHRh+u13df3LCsYehA6LEWAHR7F7GQF0rtkrQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nDE2sylCnfl6/mNSKD3zYK4qajJuhRDuDJF0LdUnhDUYyQyoAx+Urusso1ycE2CJd YjHgGKLOJ2iqu+0chjZ5y1IKHwa+Kh+ZCJuJt1NZMjLkndfDZMa8jocGo/94ZH/uWS Kq66ay2M/lS6jFDm3xXUqFUjzDNpIX+ztSsmGnl8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan Cameron , Mathieu Othacehe , =?UTF-8?q?Nuno=20S=C3=A1?= , Sasha Levin Subject: [PATCH 5.4 321/348] iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp() Date: Mon, 12 Jul 2021 08:11:45 +0200 Message-Id: <20210712060746.607884585@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060659.886176320@linuxfoundation.org> References: <20210712060659.886176320@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jonathan Cameron [ Upstream commit 92babc9938ebbf4050f2fba774836f7edc16a570 ] Add __aligned(8) to ensure the buffer passed to iio_push_to_buffers_with_timestamp() is suitable for the naturally aligned timestamp that will be inserted. Here an explicit structure is not used, because the holes would necessitate the addition of an explict memset(), to avoid a kernel data leak, making for a less minimal fix. Fixes: 1c28799257bc ("iio: light: isl29501: Add support for the ISL29501 ToF sensor.") Signed-off-by: Jonathan Cameron Cc: Mathieu Othacehe Reviewed-by: Nuno Sá Link: https://lore.kernel.org/r/20210613152301.571002-9-jic23@kernel.org Signed-off-by: Sasha Levin --- drivers/iio/proximity/isl29501.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/proximity/isl29501.c b/drivers/iio/proximity/isl29501.c index 5ae549075b27..56d6e9f927f4 100644 --- a/drivers/iio/proximity/isl29501.c +++ b/drivers/iio/proximity/isl29501.c @@ -938,7 +938,7 @@ static irqreturn_t isl29501_trigger_handler(int irq, void *p) struct iio_dev *indio_dev = pf->indio_dev; struct isl29501_private *isl29501 = iio_priv(indio_dev); const unsigned long *active_mask = indio_dev->active_scan_mask; - u32 buffer[4] = {}; /* 1x16-bit + ts */ + u32 buffer[4] __aligned(8) = {}; /* 1x16-bit + naturally aligned ts */ if (test_bit(ISL29501_DISTANCE_SCAN_INDEX, active_mask)) isl29501_register_read(isl29501, REG_DISTANCE, buffer); -- 2.30.2