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=-11.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 B39D6C3F2CD for ; Wed, 4 Mar 2020 09:58:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D2EA2166E for ; Wed, 4 Mar 2020 09:58:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583315885; bh=9ANdEwxsF1yGArHH8JLMuapabAm8FAJQw5jZ/GAJozo=; h=Subject:To:From:Date:List-ID:From; b=1MsqoDs3boGR0LKdRK9GNG1UVr5GiTA3u5KEBqbNBJlZpnx70BA6v66AwT46y4yl/ tNRgSFtouVwMyXBg93jYIekoSygv8mzfCJeiV5YiN66rUoYsVrw55Jv2wAfWDZ1RwM 7JCkiAn/o6vT8y0wVG/prExoIqRfbv63jpid2neg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729126AbgCDJ6F (ORCPT ); Wed, 4 Mar 2020 04:58:05 -0500 Received: from mail.kernel.org ([198.145.29.99]:50682 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727734AbgCDJ6F (ORCPT ); Wed, 4 Mar 2020 04:58:05 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 CE2AC20848; Wed, 4 Mar 2020 09:58:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583315884; bh=9ANdEwxsF1yGArHH8JLMuapabAm8FAJQw5jZ/GAJozo=; h=Subject:To:From:Date:From; b=TttUCAvGR0JX149X3acsWJbybzTaL3NReRTUkAScqq6RqIBjYjpLItuxc1R1q1flT pnf9iadBjRrlbw3UwuqsHZcquc+wFvkimwIjiu2tpULE5hDJyCnUybu9rTbkbd4OSk Vv9EehQCpufihjJn+J7Ys3E7v+YnnBAFljdm0tpE= Subject: patch "usb: usb251xb: fix regulator probe and error handling" added to usb-linus To: m.felsch@pengutronix.de, gregkh@linuxfoundation.org, richard.leitner@skidata.com, stable@vger.kernel.org From: Date: Wed, 04 Mar 2020 10:57:52 +0100 Message-ID: <15833158728239@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled usb: usb251xb: fix regulator probe and error handling to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From f06947f275f1838586792c17b6ab70da82ed7b43 Mon Sep 17 00:00:00 2001 From: Marco Felsch Date: Wed, 26 Feb 2020 08:26:44 +0100 Subject: usb: usb251xb: fix regulator probe and error handling Commit 4d7201cda226 ("usb: usb251xb: add vdd supply support") didn't covered the non-DT use-case and so the regualtor_enable() call during probe will fail on those platforms. Also the commit didn't handled the error case correctly. Move devm_regulator_get() out of usb251xb_get_ofdata() to address the 1st issue. This can be done without worries because devm_regulator_get() handles the non-DT use-case too. Add devm_add_action_or_reset() to address the 2nd bug. Fixes: 4d7201cda226 ("usb: usb251xb: add vdd supply support") Signed-off-by: Marco Felsch Cc: stable Acked-by: Richard Leitner Link: https://lore.kernel.org/r/20200226072644.18490-1-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/usb251xb.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 10c9e7f6273e..29fe5771c21b 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -424,10 +424,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, return err; } - hub->vdd = devm_regulator_get(dev, "vdd"); - if (IS_ERR(hub->vdd)) - return PTR_ERR(hub->vdd); - if (of_property_read_u16_array(np, "vendor-id", &hub->vendor_id, 1)) hub->vendor_id = USB251XB_DEF_VENDOR_ID; @@ -640,6 +636,13 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, } #endif /* CONFIG_OF */ +static void usb251xb_regulator_disable_action(void *data) +{ + struct usb251xb *hub = data; + + regulator_disable(hub->vdd); +} + static int usb251xb_probe(struct usb251xb *hub) { struct device *dev = hub->dev; @@ -676,10 +679,19 @@ static int usb251xb_probe(struct usb251xb *hub) if (err) return err; + hub->vdd = devm_regulator_get(dev, "vdd"); + if (IS_ERR(hub->vdd)) + return PTR_ERR(hub->vdd); + err = regulator_enable(hub->vdd); if (err) return err; + err = devm_add_action_or_reset(dev, + usb251xb_regulator_disable_action, hub); + if (err) + return err; + err = usb251xb_connect(hub); if (err) { dev_err(dev, "Failed to connect hub (%d)\n", err); -- 2.25.1