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=-13.1 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,URIBL_BLOCKED,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 B17E5C433E7 for ; Sun, 18 Oct 2020 19:38:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6F18E206CA for ; Sun, 18 Oct 2020 19:38:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603049887; bh=y5uEBq0CMBZP0Qcq7Mbc5G5pWK9ose4iPnukaUataFY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=L+EPjNQxQisbTSZu5S8BPQoAogQGJUAqBspOowBgBOu804j9mPMZuJBGut/XdL8MZ PEnXvRMf7ECmSlZB3HFGetX4YXI7bHDkgs87AEQm2fHKstACQRBsCTI1CNuBoa0bKA xyXud19gXAClhBzsckea4SywUCKFvgd1l6Ba18tk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732819AbgJRTiG (ORCPT ); Sun, 18 Oct 2020 15:38:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:39494 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731173AbgJRTZK (ORCPT ); Sun, 18 Oct 2020 15:25:10 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (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 34397222EA; Sun, 18 Oct 2020 19:25:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603049110; bh=y5uEBq0CMBZP0Qcq7Mbc5G5pWK9ose4iPnukaUataFY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BhcBlzQimQIRVnUSSDPjbdioXATQPeX19ISTcF5wplWpFvc1ESWycF15Lhgz+Ycsa gFUpWfWSTiTZMxDoQjc8pjh94qEjiAzKEXwWgT/TBV79P70xB156sBaK5lBpDwWDLp rQrVfhFeY+LMGljSxrYxVFZKRn7n8A2fVqyBT8/A= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Keita Suzuki , Kalle Valo , Sasha Levin , linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, brcm80211-dev-list@cypress.com, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 43/56] brcmsmac: fix memory leak in wlc_phy_attach_lcnphy Date: Sun, 18 Oct 2020 15:24:04 -0400 Message-Id: <20201018192417.4055228-43-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201018192417.4055228-1-sashal@kernel.org> References: <20201018192417.4055228-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Keita Suzuki [ Upstream commit f4443293d741d1776b86ed1dd8c4e4285d0775fc ] When wlc_phy_txpwr_srom_read_lcnphy fails in wlc_phy_attach_lcnphy, the allocated pi->u.pi_lcnphy is leaked, since struct brcms_phy will be freed in the caller function. Fix this by calling wlc_phy_detach_lcnphy in the error handler of wlc_phy_txpwr_srom_read_lcnphy before returning. Signed-off-by: Keita Suzuki Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200908121743.23108-1-keitasuzuki.park@sslab.ics.keio.ac.jp Signed-off-by: Sasha Levin --- .../net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c index 9fb0d9fbd9395..d532decc15383 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c @@ -5085,8 +5085,10 @@ bool wlc_phy_attach_lcnphy(struct brcms_phy *pi) pi->pi_fptr.radioloftget = wlc_lcnphy_get_radio_loft; pi->pi_fptr.detach = wlc_phy_detach_lcnphy; - if (!wlc_phy_txpwr_srom_read_lcnphy(pi)) + if (!wlc_phy_txpwr_srom_read_lcnphy(pi)) { + kfree(pi->u.pi_lcnphy); return false; + } if (LCNREV_IS(pi->pubpi.phy_rev, 1)) { if (pi_lcn->lcnphy_tempsense_option == 3) { -- 2.25.1