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[2620:137:e000::1:20]) by mx.google.com with ESMTP id c66-20020a621c45000000b0063b86d1e1dfsi31941945pfc.109.2023.05.03.03.09.35; Wed, 03 May 2023 03:09:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@rasmusvillemoes.dk header.s=google header.b=eC+qsf6x; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229559AbjECJ61 (ORCPT + 99 others); Wed, 3 May 2023 05:58:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229667AbjECJ6Z (ORCPT ); Wed, 3 May 2023 05:58:25 -0400 Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8FA543C01 for ; Wed, 3 May 2023 02:58:22 -0700 (PDT) Received: by mail-lj1-x229.google.com with SMTP id 38308e7fff4ca-2ac7707e34fso2443651fa.1 for ; Wed, 03 May 2023 02:58:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rasmusvillemoes.dk; s=google; t=1683107901; x=1685699901; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=tBpbf4XISWJtBVaZwAOtHjLjUmCzvCogGOFBVPRRTeM=; b=eC+qsf6xglZKV7CIhF7hjQId46jGm5iibiBcAS5+hNCOFLrwCctuk9zhKSQhP11MG4 FzzE7GtFUQPe3xg3H3NsE7+/BtBNwb9JiONgBSJXQxJM/ii3584RhveoKLDUc/ta991P FUPi3lYbvlSeajspGQTA+hsRtnQ4fGnu0QzRY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683107901; x=1685699901; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=tBpbf4XISWJtBVaZwAOtHjLjUmCzvCogGOFBVPRRTeM=; b=bHiK7cPZ0qAJcPQ/QsVR0JRBjTLQ17VXeff5pPMbq94AiIMYHvk+MNYYAlyPn9FzTC 2+hpw44tCo1QaFhu/c91lZgUC/Efp+BjKf9C/Av9/KGJpfmYCKH/tRDmTyzR6Tec6rAm aiT/mh1EzX6Ni1XSYXAxLUlZMgEV1Ogds+Mkp6F4/qgp/zxwztEU5jk92ieH1dJ80sYX TtdgfDL8NDcpU9FKQJ+HiuQWqhi/X9OgpWM83QCcD0yy54mO1d/3ZCTVJmhFkFRRbw69 D+WtVQHCwVkL37BtX510sci4HZB967pO+VuUHUs1TU9BaQ5/KnLuKFIySdHPyQOm3gOZ aLjg== X-Gm-Message-State: AC+VfDwTl+L3Nc+2azHj1mmSl2tQ86FEuY6D5/EhungfzLtxMoc9ewcF Ts7zRtXB+ob3/4WZ3JrFfRw6sQ== X-Received: by 2002:a2e:b0eb:0:b0:2ac:767c:ae14 with SMTP id h11-20020a2eb0eb000000b002ac767cae14mr231428ljl.19.1683107900758; Wed, 03 May 2023 02:58:20 -0700 (PDT) Received: from prevas-ravi.k200.local ([87.54.42.112]) by smtp.gmail.com with ESMTPSA id b10-20020a2e988a000000b002ac77768608sm74050ljj.100.2023.05.03.02.58.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 May 2023 02:58:20 -0700 (PDT) From: Rasmus Villemoes To: Cosmin Tanislav , Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Linus Walleij Cc: Rasmus Villemoes , Jonathan Cameron , Cosmin Tanislav , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] iio: addac: ad74413: fix resistance input processing Date: Wed, 3 May 2023 11:58:17 +0200 Message-Id: <20230503095817.452551-1-linux@rasmusvillemoes.dk> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On success, ad74413r_get_single_adc_result() returns IIO_VAL_INT aka 1. So currently, the IIO_CHAN_INFO_PROCESSED case is effectively equivalent to the IIO_CHAN_INFO_RAW case, and we never call ad74413r_adc_to_resistance_result() to convert the adc measurement to ohms. Check ret for being negative rather than non-zero. Fixes: fea251b6a5dbd (iio: addac: add AD74413R driver) Signed-off-by: Rasmus Villemoes --- drivers/iio/addac/ad74413r.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c index 07e9f6ae16a8..e3366cf5eb31 100644 --- a/drivers/iio/addac/ad74413r.c +++ b/drivers/iio/addac/ad74413r.c @@ -1007,7 +1007,7 @@ static int ad74413r_read_raw(struct iio_dev *indio_dev, ret = ad74413r_get_single_adc_result(indio_dev, chan->channel, val); - if (ret) + if (ret < 0) return ret; ad74413r_adc_to_resistance_result(*val, val); -- 2.37.2