From patchwork Tue Oct 27 13:50:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 311768 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 E91DBC388F9 for ; Tue, 27 Oct 2020 18:16:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AC2F621D7B for ; Tue, 27 Oct 2020 18:16:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603822579; bh=2uPyItsYv7sh2HwsuonUm6p+JI2jQxPJkHUuWR9M74I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=PLtAc6We7uHk6dDMt4byLyJVUgwc+S798mIZSDNbunvEH64Nl+E4XGs9rRzfL23hK 2t0AiO7zRmy8pvzEURLBr+OzWfE/MWgO6aWwHiGjjWeDTiSt8BjBsCtFmNBmT1XYsT 7M4lOH1zfN9ZkPAStraOLidhe+8IRFYj06UcVfDA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756218AbgJ0OME (ORCPT ); Tue, 27 Oct 2020 10:12:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:56030 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754841AbgJ0OHU (ORCPT ); Tue, 27 Oct 2020 10:07:20 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 2FF2D22258; Tue, 27 Oct 2020 14:07:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603807639; bh=2uPyItsYv7sh2HwsuonUm6p+JI2jQxPJkHUuWR9M74I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Yf24KH5VLjD1i5zY2CGb5jUBKg+JXZ2zoQeb26RZmtugccOtsNhI3n4dipUXxs9hd 1sp+ROk4f0w72Z4uG7MoIHWmUdGoanfZEJ52cYu6puv4RaHnRz+42PYG3jTBxm9X39 L/VTYGRoVAHm9/b0KSSpabOCbHmd7FOf4aAn8nQI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Keita Suzuki , Kalle Valo , Sasha Levin Subject: [PATCH 4.9 126/139] brcmsmac: fix memory leak in wlc_phy_attach_lcnphy Date: Tue, 27 Oct 2020 14:50:20 +0100 Message-Id: <20201027134908.127325385@linuxfoundation.org> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201027134902.130312227@linuxfoundation.org> References: <20201027134902.130312227@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@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 93d4cde0eb313..c9f48ec46f4a1 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c @@ -5090,8 +5090,10 @@ 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) {