From patchwork Fri Aug 19 21:46:25 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jes Sorensen X-Patchwork-Id: 9291153 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E9FEE607FF for ; Fri, 19 Aug 2016 21:47:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DFBFB295B3 for ; Fri, 19 Aug 2016 21:47:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D497A295B5; Fri, 19 Aug 2016 21:47:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 89D8D295B3 for ; Fri, 19 Aug 2016 21:47:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755591AbcHSVrZ (ORCPT ); Fri, 19 Aug 2016 17:47:25 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59596 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754449AbcHSVrY (ORCPT ); Fri, 19 Aug 2016 17:47:24 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 249B58553D; Fri, 19 Aug 2016 21:46:44 +0000 (UTC) Received: from ultrasam.trained-monkey.org (ovpn-116-161.phx2.redhat.com [10.3.116.161]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u7JLkhwm020381; Fri, 19 Aug 2016 17:46:43 -0400 Received: from carbonite.redhat.com (localhost.localdomain [127.0.0.1]) by ultrasam.trained-monkey.org (Postfix) with ESMTP id 167411821350D; Fri, 19 Aug 2016 17:46:43 -0400 (EDT) From: Jes.Sorensen@redhat.com To: linux-wireless@vger.kernel.org Cc: kvalo@codeaurora.org, Larry.Finger@lwfinger.net, Jes Sorensen Subject: [PATCH 03/20] rtl8xxxu: Fix error handling if rtl8xxxu_init_device() fails Date: Fri, 19 Aug 2016 17:46:25 -0400 Message-Id: <1471643202-26250-4-git-send-email-Jes.Sorensen@redhat.com> In-Reply-To: <1471643202-26250-1-git-send-email-Jes.Sorensen@redhat.com> References: <1471643202-26250-1-git-send-email-Jes.Sorensen@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Fri, 19 Aug 2016 21:46:44 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jes Sorensen For some reason we lost the code bailing if rtl8xxxu_init_device() returned an error. This catches the error and also cleans up the error handling. Signed-off-by: Jes Sorensen --- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index ca4c40d..9c6305b 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -5947,7 +5947,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface, struct ieee80211_hw *hw; struct usb_device *udev; struct ieee80211_supported_band *sband; - int ret = 0; + int ret; int untested = 1; udev = usb_get_dev(interface_to_usbdev(interface)); @@ -5995,6 +5995,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface, hw = ieee80211_alloc_hw(sizeof(struct rtl8xxxu_priv), &rtl8xxxu_ops); if (!hw) { ret = -ENOMEM; + priv = NULL; goto exit; } @@ -6043,6 +6044,8 @@ static int rtl8xxxu_probe(struct usb_interface *interface, } ret = rtl8xxxu_init_device(hw); + if (ret) + goto exit; hw->wiphy->max_scan_ssids = 1; hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; @@ -6093,9 +6096,20 @@ static int rtl8xxxu_probe(struct usb_interface *interface, goto exit; } + return 0; + exit: - if (ret < 0) - usb_put_dev(udev); + usb_set_intfdata(interface, NULL); + + if (priv) { + kfree(priv->fw_data); + mutex_destroy(&priv->usb_buf_mutex); + mutex_destroy(&priv->h2c_mutex); + } + usb_put_dev(udev); + + ieee80211_free_hw(hw); + return ret; }