From mboxrd@z Thu Jan 1 00:00:00 1970 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=-15.5 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_2 autolearn=unavailable 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 4389FC4320A for ; Mon, 30 Aug 2021 14:22:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D74560F5E for ; Mon, 30 Aug 2021 14:22:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237225AbhH3OXA (ORCPT ); Mon, 30 Aug 2021 10:23:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:33536 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237173AbhH3OWz (ORCPT ); Mon, 30 Aug 2021 10:22:55 -0400 Received: from jic23-huawei (cpc108967-cmbg20-2-0-cust86.5-4.cable.virginm.net [81.101.6.87]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8FC2260F25; Mon, 30 Aug 2021 14:21:55 +0000 (UTC) Date: Mon, 30 Aug 2021 15:25:06 +0100 From: Jonathan Cameron To: Miquel Raynal Cc: Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , Lee Jones , bcousson@baylibre.com, Tony Lindgren , Tero Kristo , Michael Turquette , Stephen Boyd , Thomas Petazzoni , "Ryan J . Barnett" , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-input@vger.kernel.org, linux-omap@vger.kernel.org, linux-clk@vger.kernel.org Subject: Re: [PATCH 12/40] mfd: ti_am335x_tscadc: Move the driver structure allocation earlier Message-ID: <20210830152506.6215c0e8@jic23-huawei> In-Reply-To: <20210825152518.379386-13-miquel.raynal@bootlin.com> References: <20210825152518.379386-1-miquel.raynal@bootlin.com> <20210825152518.379386-13-miquel.raynal@bootlin.com> X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.30; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org On Wed, 25 Aug 2021 17:24:50 +0200 Miquel Raynal wrote: > Allocating the driver structure should be done earlier in the probe so > that we can used its members from the beginning. > > Signed-off-by: Miquel Raynal No problem with this, but I would expect either this patch or the one immediately after it to actually take advantage of this being available earlier in probe(). As things stand it's not clear to a reviewer that this is actually a useful bit of refactoring. > --- > drivers/mfd/ti_am335x_tscadc.c | 14 +++++++------- > 1 file changed, 7 insertions(+), 7 deletions(-) > > diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c > index 8e86b766b619..0fef35e1e64b 100644 > --- a/drivers/mfd/ti_am335x_tscadc.c > +++ b/drivers/mfd/ti_am335x_tscadc.c > @@ -124,6 +124,13 @@ static int ti_tscadc_probe(struct platform_device *pdev) > int tsc_wires = 0, adc_channels = 0, readouts = 0; > int total_channels, clock_rate, ctrl, err; > > + /* Allocate memory for device */ > + tscadc = devm_kzalloc(&pdev->dev, sizeof(*tscadc), GFP_KERNEL); > + if (!tscadc) > + return -ENOMEM; > + > + tscadc->dev = &pdev->dev; > + > if (!pdev->dev.of_node) { > dev_err(&pdev->dev, "Could not find valid DT data.\n"); > return -EINVAL; > @@ -159,13 +166,6 @@ static int ti_tscadc_probe(struct platform_device *pdev) > return -EINVAL; > } > > - /* Allocate memory for device */ > - tscadc = devm_kzalloc(&pdev->dev, sizeof(*tscadc), GFP_KERNEL); > - if (!tscadc) > - return -ENOMEM; > - > - tscadc->dev = &pdev->dev; > - > err = platform_get_irq(pdev, 0); > if (err < 0) { > dev_err(&pdev->dev, "no irq ID is specified.\n");