From patchwork Sat Aug 29 06:47:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 257314 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9A10C433E6 for ; Sat, 29 Aug 2020 06:48:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C4FEF21473 for ; Sat, 29 Aug 2020 06:48:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598683725; bh=SNQEDWZSEyuEV44lUPa7TZAgyAUN1wW018JYD+wKFHE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=LR9vO/w81jVJnp8F2alSSs+97ozKzCz5s2LMX08fB3Q2mooswL+ureDE5HUhklo6f Uvfh7cc1FaZZVYZg9n7Xbfkv38ksQqLVhF1FVl96JtQgNz6kw0HAsLbvleBaUNNPtu lZZL62KU4gWVkI05//chJYGN+EzVwdXPo5unY1qM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727810AbgH2Gsp (ORCPT ); Sat, 29 Aug 2020 02:48:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:41850 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727784AbgH2Gso (ORCPT ); Sat, 29 Aug 2020 02:48:44 -0400 Received: from localhost.localdomain (unknown [194.230.155.216]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id EC00321548; Sat, 29 Aug 2020 06:48:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598683724; bh=SNQEDWZSEyuEV44lUPa7TZAgyAUN1wW018JYD+wKFHE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H0flPPFNaEIomrsd1SRrqn4dBuFpTvrWIKJVqoyaufENRJH25akJyOI3O8AxE1eMG dPx37vRWagc1jIxtsAoiOHiwK2Mn9EFDLWkkmr8MGdaCIpSa2NJsQ8ElCTxyKZ0ye/ WDVFpiTqyJ/11Y914cvy/Q78MEuHLKNQorJPCVPE= From: Krzysztof Kozlowski To: Jonathan Cameron , Lars-Peter Clausen , Peter Meerwald-Stadler , Peter Rosin , Michael Hennerich , Marek Vasut , Tomasz Duszynski , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Cc: Andy Shevchenko , Krzysztof Kozlowski Subject: [PATCH v3 12/18] iio: dac: dpot-dac: Simplify with dev_err_probe() Date: Sat, 29 Aug 2020 08:47:20 +0200 Message-Id: <20200829064726.26268-12-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200829064726.26268-1-krzk@kernel.org> References: <20200829064726.26268-1-krzk@kernel.org> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and also it prints the error value. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Andy Shevchenko --- drivers/iio/dac/dpot-dac.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c index be61c3b01e8b..2258535b8a42 100644 --- a/drivers/iio/dac/dpot-dac.c +++ b/drivers/iio/dac/dpot-dac.c @@ -183,18 +183,14 @@ static int dpot_dac_probe(struct platform_device *pdev) indio_dev->num_channels = 1; dac->vref = devm_regulator_get(dev, "vref"); - if (IS_ERR(dac->vref)) { - if (PTR_ERR(dac->vref) != -EPROBE_DEFER) - dev_err(&pdev->dev, "failed to get vref regulator\n"); - return PTR_ERR(dac->vref); - } + if (IS_ERR(dac->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(dac->vref), + "failed to get vref regulator\n"); dac->dpot = devm_iio_channel_get(dev, "dpot"); - if (IS_ERR(dac->dpot)) { - if (PTR_ERR(dac->dpot) != -EPROBE_DEFER) - dev_err(dev, "failed to get dpot input channel\n"); - return PTR_ERR(dac->dpot); - } + if (IS_ERR(dac->dpot)) + return dev_err_probe(&pdev->dev, PTR_ERR(dac->dpot), + "failed to get dpot input channel\n"); ret = iio_get_channel_type(dac->dpot, &type); if (ret < 0)