From patchwork Sun Apr 3 15:40:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 556010 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C31A8C433FE for ; Sun, 3 Apr 2022 15:41:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352925AbiDCPnL (ORCPT ); Sun, 3 Apr 2022 11:43:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359258AbiDCPml (ORCPT ); Sun, 3 Apr 2022 11:42:41 -0400 Received: from smtp.smtpout.orange.fr (smtp01.smtpout.orange.fr [80.12.242.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2DAB2E68C for ; Sun, 3 Apr 2022 08:40:40 -0700 (PDT) Received: from pop-os.home ([90.126.236.122]) by smtp.orange.fr with ESMTPA id b2LBnqhuvxsSgb2LCnvlQt; Sun, 03 Apr 2022 17:40:38 +0200 X-ME-Helo: pop-os.home X-ME-Auth: YWZlNiIxYWMyZDliZWIzOTcwYTEyYzlhMmU3ZiQ1M2U2MzfzZDfyZTMxZTBkMTYyNDBjNDJlZmQ3ZQ== X-ME-Date: Sun, 03 Apr 2022 17:40:38 +0200 X-ME-IP: 90.126.236.122 From: Christophe JAILLET To: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Kalle Valo , "David S. Miller" , Jakub Kicinski , Paolo Abeni , Matthias Brugger , Deren Wu Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH] mt76: mt7921: Fix the error handling path of mt7921_pci_probe() Date: Sun, 3 Apr 2022 17:40:33 +0200 Message-Id: X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org In case of error, some resources must be freed, as already done above and below the devm_kmemdup() and __mt7921e_mcu_drv_pmctrl() calls added in the commit in Fixes:. Fixes: 602cc0c9618a ("mt76: mt7921e: fix possible probe failure after reboot") Signed-off-by: Christophe JAILLET --- This is more or less a blind fix. Review with care. --- drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c index 1a01d025bbe5..062e2b422478 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c @@ -302,8 +302,10 @@ static int mt7921_pci_probe(struct pci_dev *pdev, dev->bus_ops = dev->mt76.bus; bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops), GFP_KERNEL); - if (!bus_ops) - return -ENOMEM; + if (!bus_ops) { + ret = -ENOMEM; + goto err_free_dev; + } bus_ops->rr = mt7921_rr; bus_ops->wr = mt7921_wr; @@ -312,7 +314,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev, ret = __mt7921e_mcu_drv_pmctrl(dev); if (ret) - return ret; + goto err_free_dev; mdev->rev = (mt7921_l1_rr(dev, MT_HW_CHIPID) << 16) | (mt7921_l1_rr(dev, MT_HW_REV) & 0xff);