From patchwork Fri Oct 26 00:45:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matheus Tavares X-Patchwork-Id: 10656843 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 7799614E2 for ; Fri, 26 Oct 2018 00:45:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6A7A22C24D for ; Fri, 26 Oct 2018 00:45:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C2842C6C3; Fri, 26 Oct 2018 00:45:44 +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 025B02C24D for ; Fri, 26 Oct 2018 00:45:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727543AbeJZJUc (ORCPT ); Fri, 26 Oct 2018 05:20:32 -0400 Received: from mail-qt1-f196.google.com ([209.85.160.196]:40516 "EHLO mail-qt1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727453AbeJZJUc (ORCPT ); Fri, 26 Oct 2018 05:20:32 -0400 Received: by mail-qt1-f196.google.com with SMTP id z9-v6so12185937qto.7 for ; Thu, 25 Oct 2018 17:45:42 -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=ZdVgjW8o5j0hFmycZse60LAYwk8ZLgVMTfFc/PlA8x3OYy9kyQRpq8HWJbsiY+9TzA H5/mEniByRs99eSMaHt7o8ISGkpv6ucZtejmliUQgB5uUc/g1n+OsbI9cFN7S2KySPVg Ff3J75XU6zXHQzSZdPj9qTCTsk4C8EzDUstNEsTMqYknQV3ES1bTACfcRQIaUCOnIwR0 u3jwsYXFQ4hFa2KKQzzQ3ex8ITB+pBOuh5Yhnmhfl3kTIqvmRy+huxwDF8+YiAVtukdW 0oQ4PdYwbkQrgZYTuEvE1PzCK1kkdwN8c8ClZZTFIVd5pY4zHmN+CjCRz7izB3EyDHbV azfg== 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=CEEopc9HWrxc1r0EdGjEXPZE/9lOjrvuTeHynTUyk+Me7cItR9zslLhG6esTbttGJH C2unMsPqgsGbXCU4tbFmBWvwwwyGCFZ2D3OlnN/xAw7DpMBWYfNjy5KssYqpj8J0KOsm DZbrjCyQqoFjK6OQtBnW5v2AXyULvBYby0Dp6jl/ZgT9yPqEufEHloP5EePU7OBzDwWx oeRas7z6X8diu0zx6b/lsKZBXnSzSJlyOl5KregLJzmd5D87uLCHe4/o69O3+efPp/KS koVqX6YcFXNBuyQgmNIqc6pEjf4pWo4D/SJyTm/g8jYaoM/ALxhrXSSsDj3dyRO3GfQR IB5A== X-Gm-Message-State: AGRZ1gJAPagLiBxYX19fZoxsDFQr5DiQvasQyqq+/oPn6hz8BUDmKCOA UQx70ugApJxqbiT8aCLAP8/aeQ== X-Google-Smtp-Source: AJdET5f6Mgqdy+oiFVJ9tbTYEHDf1YxO93I/lCYm3xwuA+nY9xSIuT5bMCFVn/FmVxK54U9rBhNwGA== X-Received: by 2002:a0c:9d01:: with SMTP id m1mr1412459qvf.192.1540514741602; Thu, 25 Oct 2018 17:45:41 -0700 (PDT) Received: from mango.spo.virtua.com.br ([2804:14c:81:942d::1]) by smtp.gmail.com with ESMTPSA id y3-v6sm2371735qti.27.2018.10.25.17.45.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 25 Oct 2018 17:45:41 -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 6/6] staging:iio:ad2s90: Check channel type at read_raw Date: Thu, 25 Oct 2018 21:45:12 -0300 Message-Id: <20181026004512.31012-7-matheus.bernardino@usp.br> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20181026004512.31012-1-matheus.bernardino@usp.br> References: <20181026004512.31012-1-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 */