From patchwork Sat Oct 27 02:00:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matheus Tavares X-Patchwork-Id: 10658027 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3FE9614DE for ; Sat, 27 Oct 2018 02:01:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 313642C7A1 for ; Sat, 27 Oct 2018 02:01:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 227B52C821; Sat, 27 Oct 2018 02:01:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C2EA62C7A1 for ; Sat, 27 Oct 2018 02:01:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727941AbeJ0KkO (ORCPT ); Sat, 27 Oct 2018 06:40:14 -0400 Received: from mail-qk1-f196.google.com ([209.85.222.196]:36156 "EHLO mail-qk1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727878AbeJ0KkO (ORCPT ); Sat, 27 Oct 2018 06:40:14 -0400 Received: by mail-qk1-f196.google.com with SMTP id q184-v6so1847607qkd.3 for ; Fri, 26 Oct 2018 19:00:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=usp-br.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=NU6uEhiDTDfMKDT6vIKylD1JcOmwJKYVJFXwnpeU4xs=; b=sOjLj73hbkjSNHCbjYdY/10ua9GvS5qgofryFwX7Al2Wq0Ah/5T0+uLHRFthjyBSJR fTxs1EBvwwPAxu2/CpX6Rp9IcNWvQ4Dczucmuj7hIBEjAjTCvnvcuzwYtr7a7BmczEqD EC9Hw3/QdPVRZ54nCM9GZYJzFYhzuMSUc9tSmxuHNoTrd9bXikADe/Jk/AAIe2pLYDxP CtEwaCma9AcArR9h9GULLKwSFz0RjwZ0m1s6diAdZp2M1n9k5D3V/8AAAZBJL2Jc4L4R +rRwBd4hm+ldGz7/+5i9pky/AHbNqQMzDVnqoYm/juj42YnPhnKwVJn6rjc8PQwroUSd GRvw== 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; bh=NU6uEhiDTDfMKDT6vIKylD1JcOmwJKYVJFXwnpeU4xs=; b=KlmAfLnYVe7B8BlLyagTGLQO5/CU7QezsT5wjoJgogR9TZQEhHkpRwkXYpyTtKhNjH 3dvtVx26i9kljc5fptYxDe0DDMGBNz+Nlmbz4mw0heHGed5q+KIExkS4wzgHKa8Gk5d1 gbtZ7nWORsP1ApfcyJiiglD0LT83IGcgdN0FtdhmOYFjW4H/1QN3C0Omd4NOgcZCoHwN 1l2p2WCgcgX0gRT+YCvuMRB1ioKYDjWJDAh9mKQlmy3/1htuVMII6JYrGXQtMQPajREj 0skER/ZS/qieX5FsRq4lulG4bCFIybBkZKqzEJb5czkt7OPzn9Vob5dRVXf1Q1yZAS9i QJng== X-Gm-Message-State: AGRZ1gJEpFpUF+nWMNZ2ELmSbOBBCORd3DUzfE5anJOJjz0Cw4aqZxn3 0twyDK63qWSUIiQ1x+eVz/3W9A== X-Google-Smtp-Source: AJdET5cpuLESHD23vMBbkSd1mZMwXcwmH5QzRTLkRUJMo3g/oXciZKeWaC6sNGnbDMdF/eH7p6RlAA== X-Received: by 2002:a37:1ad9:: with SMTP id l86mr5001061qkh.54.1540605653316; Fri, 26 Oct 2018 19:00:53 -0700 (PDT) Received: from mango.spo.virtua.com.br ([2804:14c:81:942d::1]) by smtp.gmail.com with ESMTPSA id h67-v6sm8499777qkf.32.2018.10.26.19.00.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 26 Oct 2018 19:00:52 -0700 (PDT) From: Matheus Tavares To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Hartmut Knaack , Peter Meerwald-Stadler , Greg Kroah-Hartman Cc: linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, kernel-usp@googlegroups.com Subject: [PATCH v2 6/6] staging:iio:ad2s90: Check channel type at read_raw Date: Fri, 26 Oct 2018 23:00:05 -0300 Message-Id: <20181027020005.3140-7-matheus.bernardino@usp.br> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20181027020005.3140-1-matheus.bernardino@usp.br> References: <20181027020005.3140-1-matheus.bernardino@usp.br> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds a channel type check at the beginning of the ad2s90_read_raw function. Since ad2s90 has only one channel, it just checks if the given channel is the expected one and if not, return -EINVAL. Signed-off-by: Matheus Tavares --- drivers/staging/iio/resolver/ad2s90.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c index 52b656875ed1..24002042a5c5 100644 --- a/drivers/staging/iio/resolver/ad2s90.c +++ b/drivers/staging/iio/resolver/ad2s90.c @@ -34,6 +34,9 @@ static int ad2s90_read_raw(struct iio_dev *indio_dev, int ret; struct ad2s90_state *st = iio_priv(indio_dev); + if (chan->type != IIO_ANGL) + return -EINVAL; + switch (m) { case IIO_CHAN_INFO_SCALE: /* 2 * Pi / (2^12 - 1) ~= 0.001534355 */