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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 8DB62C004D3 for ; Mon, 22 Oct 2018 12:09:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 54D972064E for ; Mon, 22 Oct 2018 12:09:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nwG8sOGR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 54D972064E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728922AbeJVU1Y (ORCPT ); Mon, 22 Oct 2018 16:27:24 -0400 Received: from mail-pf1-f194.google.com ([209.85.210.194]:35356 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727194AbeJVU1X (ORCPT ); Mon, 22 Oct 2018 16:27:23 -0400 Received: by mail-pf1-f194.google.com with SMTP id l17-v6so19815473pff.2; Mon, 22 Oct 2018 05:09:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=j7MusjG4H6b2xIMWg4wOmTmbsUrzk81LRSqovr0t9o4=; b=nwG8sOGRs95KXeDzgoBubkFS/kznqhQYkDgce0EdTSzzFh1jlUN/gaZIWMljC+WDSq dilvCcO3dPthcLY41ODGFrASqhALYLbddMVqm7tSMwPCv0ZFia6ujc8yZfpuwY4wqblI uzEd0bSuF4PNX2UYeH9nyD8ptwuX+9DCk60R2XZReeGa6eUMZaIfCuDg0wUq+p6qblSf k31+e0gnJbKHl4zCnzdDISHt1HWOK2Kme6ltHyLlWVLpIL0TIQA+3UCB+PhfaNM9uCuE OdP4mSQ2YVKYnDEu6ycDYb1XSo1q1F/nfkNjAHRkV13496qOOE1Z+aiqLdYyeD1bsZur T6fg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=j7MusjG4H6b2xIMWg4wOmTmbsUrzk81LRSqovr0t9o4=; b=saPGO9BXpi7jREXGvepfpvjy+v0DqJHCIfsGr04XdjNoJbiC95s+3JIgEPLIAQhF47 vkbx9Hmj60WGbY9ysaGJhwiXAsiqnTlD5Y6kmRc3hkxKvrpUV1er/eWQpUfsR4b+18TC sokQMTqjxZVzi14LNSLRexrNYaMMO4HMHfL1cAroa/IC+jnZF2SB7MQPhviKvzDGqLTF iD7FeVneaae67l6afHtOgxqKPVX5/uBgasmuZKd9kE76ueIPoFWL9v2gbWEe10Q4B7ZE 0KeqR+bI2QXLMs2fFBHqFjK+/P68Bs9BB8pt7ymBhrz69mAo6tLTsEHqJpoJDFfFl7Ev Y3qg== X-Gm-Message-State: ABuFfojCOMxiKdRTDIp8gqA8FNiGlMaacV/XZvK6y3+cv3PIjyx6mu4N 8X5FdQcmj6PuMV4oESGFfgw= X-Google-Smtp-Source: ACcGV622Ml/v3cCxnxQiHRMQ7s/LgfTZ6VVnY2atBpIAEvf6/EwKttGzVFH7j9E1aElBSd8/9CkJMw== X-Received: by 2002:a62:5a47:: with SMTP id o68-v6mr16308784pfb.31.1540210145814; Mon, 22 Oct 2018 05:09:05 -0700 (PDT) Received: from localhost.localdomain ([2001:268:c0a5:1904:c698:f9ce:cdd:454c]) by smtp.gmail.com with ESMTPSA id m74-v6sm64880572pfi.102.2018.10.22.05.09.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Oct 2018 05:09:05 -0700 (PDT) From: William Breathitt Gray To: linus.walleij@linaro.org Cc: linux@rasmusvillemoes.dk, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, William Breathitt Gray Subject: [PATCH 2/6] gpio: 104-idi-48e: Mask the read inputs for get_multiple Date: Mon, 22 Oct 2018 21:09:16 +0900 Message-Id: <7f7c7bb8dc10bb315ca03860cc24230bfc5370d8.1540209293.git.vilhelm.gray@gmail.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch masks the read inputs with the word mask in order to ensure only requested input states are returned in the bits array. Suggested-by: Rasmus Villemoes Signed-off-by: William Breathitt Gray --- drivers/gpio/gpio-104-idi-48.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c index 2c9738adb3a6..88dc6f2449f6 100644 --- a/drivers/gpio/gpio-104-idi-48.c +++ b/drivers/gpio/gpio-104-idi-48.c @@ -128,7 +128,7 @@ static int idi_48_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask, port_state = inb(idi48gpio->base + ports[i]); /* store acquired bits at respective bits array offset */ - bits[word_index] |= port_state << word_offset; + bits[word_index] |= (port_state << word_offset) & word_mask; } return 0; -- 2.19.1