From patchwork Sat Nov 3 22:49:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matheus Tavares X-Patchwork-Id: 10666787 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 CF14217D4 for ; Sat, 3 Nov 2018 22:50:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C311729AC7 for ; Sat, 3 Nov 2018 22:50:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B6EA729AD3; Sat, 3 Nov 2018 22:50:32 +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 559B629AC7 for ; Sat, 3 Nov 2018 22:50:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728835AbeKDIDH (ORCPT ); Sun, 4 Nov 2018 03:03:07 -0500 Received: from mail-qk1-f195.google.com ([209.85.222.195]:44245 "EHLO mail-qk1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727087AbeKDIDG (ORCPT ); Sun, 4 Nov 2018 03:03:06 -0500 Received: by mail-qk1-f195.google.com with SMTP id n12so8923299qkh.11 for ; Sat, 03 Nov 2018 15:50:26 -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=uRaFpWiqq0590LAIWCKDCZV7Qjo+FL/9V7eRidlfT3s=; b=1CtKVcdxkcaI283xQLfB0FmveXFcTjA/J4RM6cOTw0TWTWyYJxs1hfN4KODCcC4rs4 PdacCMMokO7XCZmntj9zaKaRwMHeTKdUb75OZ+DR6cLWhnvxiK85DN2A1b31MEVefbgu X3MhEvXnjvs0IODEaQ8wOx2wPIe50dn+iJY3G7+T49qRBFrcJYJjiQQOG7CM7zrq8jMC 20DpfgzBZhpwwx/Pxdv4D4CNz3FcYgZ0D5jLK6qEq4cDs7+4eQnNg84gUI067LCdP2CL OfZsA447baszPcwSqb2UbHrxngRNGF+sXEjoTcONlbi6TKC4DJvyOWuXWEPYWPwmRXf9 ZmVw== 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=uRaFpWiqq0590LAIWCKDCZV7Qjo+FL/9V7eRidlfT3s=; b=UimJ/2b4McOuF9feu3ChlnKAD5QhRhnan1ZjY3nhvIRyXHUQIR3pEZC0nGq6YKeC2M SMlbXd7TmB50YIQs0If54TKDu1v7pUXGH/usz4rl6DW8jA76fR6vqtqYJHav3ed5AW38 cuZjSSUs5ok056Krr8tqA1vukKMZN2TvSQhmesEy/H3xHwXa8NKCf/OHZC3BrvBCUdgW 9wLY+cs0HWJQEDw4jqlj282UmY5HJQrWaCyEElc404cNOSX9rirZyJUPaH85ElBqvAzO hwfpnVxNwPoNaDFbNfvfBKfyHCbhSn8ukfa5m0jpZPfGRkdk1dr07dvzxhtn1O1momJC gg4w== X-Gm-Message-State: AGRZ1gLF7Ay7Gxc53N7slgFszsEghofjDXb4HRyCLO1tRD9YuzruIOOe jSHNG/Qw6pdybVdCgpSMz1FLIg== X-Google-Smtp-Source: AJdET5eBeXKxiHKO8ookz4GGM6+/EUtIbCMcPq4mgVcRBDAoKdwpzrgYl/IHkNdR6ZkZ8j1mPy1+6g== X-Received: by 2002:a0c:d107:: with SMTP id a7mr16112704qvh.104.1541285425687; Sat, 03 Nov 2018 15:50:25 -0700 (PDT) Received: from mango.spo.virtua.com.br ([2804:14c:81:942d::1]) by smtp.gmail.com with ESMTPSA id 35-v6sm27550924qtu.69.2018.11.03.15.50.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 03 Nov 2018 15:50:25 -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 v3 6/6] staging:iio:ad2s90: Check channel type at read_raw Date: Sat, 3 Nov 2018 19:49:48 -0300 Message-Id: <20181103224948.31014-7-matheus.bernardino@usp.br> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20181103224948.31014-1-matheus.bernardino@usp.br> References: <20181103224948.31014-1-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 9c168b7410d0..3e257ac46f7a 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 */