From patchwork Sat Oct 27 02:00:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matheus Tavares X-Patchwork-Id: 10658035 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 80EE015A7 for ; Sat, 27 Oct 2018 02:01:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 71A6C2C7A1 for ; Sat, 27 Oct 2018 02:01:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6471F2C7F9; Sat, 27 Oct 2018 02:01:12 +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 088CC2C7A1 for ; Sat, 27 Oct 2018 02:01:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727398AbeJ0Kj7 (ORCPT ); Sat, 27 Oct 2018 06:39:59 -0400 Received: from mail-qk1-f194.google.com ([209.85.222.194]:39920 "EHLO mail-qk1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726048AbeJ0Kj6 (ORCPT ); Sat, 27 Oct 2018 06:39:58 -0400 Received: by mail-qk1-f194.google.com with SMTP id e4so1844392qkh.6 for ; Fri, 26 Oct 2018 19:00:38 -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=k98qfZFTnS8YJsoHEehtGRqClwouswNGYRpoM+jy0g0=; b=0mvHuAu73tBFg2S2xrmm13wOe/2ZPE0w3h1ybC4dfMYqIkCJajhFGuOcRZ457PFVVq qIoc9L6ErihoxUKmAwQBcw2HBkOH02vz1dDMnSyleijBuYHm3/xNNcLEM60zSoH3ekKR /gLgC6Ec/vsMOuYYWmN+8g9TUZYp/+gkkCtVyVXtUWT3tWFfliczUUQ4fEwxt9M/a7wV 93gHnTH3KJpK6y2q3SasjrkL6ESkvPgA3hLemUZF4ZKXQsX1OEVX+MfM9OgTDPrJKMq+ D8uFFN4sjoZK1gYb/nP66iSuktTXlopIh+Nq5JOfpayoTjBCyqP3UV9VLEu9UR7SBS0/ 6tIg== 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=k98qfZFTnS8YJsoHEehtGRqClwouswNGYRpoM+jy0g0=; b=YJwmw6sVQEvJComgMHVQMHwp3gnUCi4C6dIGTXFWV8ra+km5iH3whvYMeuza7QzP46 D0en5DMIfCTDIJc8EdQepB7hpsirr95UI4dXFy7maowE+BV/2o1cxto0mBa9Rr8jcv6a 80AH16pMTTXBfaKj4vFGlSPoZI/kvRtHnWHMQ2l3jgCL8lDWQGlVN5MwYNw+wobXylnb Qv2aGrdVd5EZURorDrdsD+KLdc+4bzL/vggkcY96p6HGE3kpeppEz17B6IP5LjObJqiT C/kFppgfeU/8F+jEKSJCA0CnoUmhfy63baLivEWaH6634XRa2Sv+sq4vRfSShFnKf+ZS AdIQ== X-Gm-Message-State: AGRZ1gKkhj4QS/clcH1YA5XOjsoBqSzWjI57mrg55rZSHHyPhp6JEiWs bcboeDMqJUmuIy7Ib5jOSniNMw== X-Google-Smtp-Source: AJdET5cdYWQCzzz2kZGr6+Kw9s3+0znmG3RnArlGWcHf3C5FviHbNCXNukzyEjI0z3oc5dD/pkn3Bw== X-Received: by 2002:a37:aa91:: with SMTP id t139mr5101949qke.139.1540605638037; Fri, 26 Oct 2018 19:00:38 -0700 (PDT) Received: from mango.spo.virtua.com.br ([2804:14c:81:942d::1]) by smtp.gmail.com with ESMTPSA id h67-v6sm8499777qkf.32.2018.10.26.19.00.35 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 26 Oct 2018 19:00:37 -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 1/6] staging:iio:ad2s90: Make read_raw return spi_read's error code Date: Fri, 26 Oct 2018 23:00:00 -0300 Message-Id: <20181027020005.3140-2-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 Previously, when spi_read returned an error code inside ad2s90_read_raw, the code was ignored and IIO_VAL_INT was returned. This patch makes the function return the error code returned by spi_read when it fails. Signed-off-by: Matheus Tavares --- drivers/staging/iio/resolver/ad2s90.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c index 59586947a936..11fac9f90148 100644 --- a/drivers/staging/iio/resolver/ad2s90.c +++ b/drivers/staging/iio/resolver/ad2s90.c @@ -35,12 +35,15 @@ static int ad2s90_read_raw(struct iio_dev *indio_dev, struct ad2s90_state *st = iio_priv(indio_dev); mutex_lock(&st->lock); + ret = spi_read(st->sdev, st->rx, 2); - if (ret) - goto error_ret; + if (ret < 0) { + mutex_unlock(&st->lock); + return ret; + } + *val = (((u16)(st->rx[0])) << 4) | ((st->rx[1] & 0xF0) >> 4); -error_ret: mutex_unlock(&st->lock); return IIO_VAL_INT;