From patchwork Tue Jul 23 22:28:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Navid Emamdoost X-Patchwork-Id: 1135953 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="vTUBTfU3"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45tY653mRYz9sBF for ; Wed, 24 Jul 2019 08:28:29 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389543AbfGWW2Z (ORCPT ); Tue, 23 Jul 2019 18:28:25 -0400 Received: from mail-io1-f67.google.com ([209.85.166.67]:44132 "EHLO mail-io1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729617AbfGWW2Y (ORCPT ); Tue, 23 Jul 2019 18:28:24 -0400 Received: by mail-io1-f67.google.com with SMTP id s7so85202993iob.11; Tue, 23 Jul 2019 15:28:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=pU9a7WDmDblNhHtORn5q1an88I7KvX3awfI/tpZswsc=; b=vTUBTfU3WRSbpoLXj3LQRCNpjzD333/dk4AToQ4R+yDDRRvC4KUPHKNSgN9l7LMX57 3mt+PJntp8PCG3uGt29gQ4J9yoGL+R6fRpRO0WzvNPgtHeaSGxBavFHBsDkXX+ZTwNXq +G8KudPajVfM5q3ZSUAASyzViApUZN+Hs4u5iHJY06VgI0tsyEfbpSOxuyEutjEvw64G yVYw4ZwX9RCTYumtERA/by6KsC2fwayQBmcUcshaSSKFyIkpMm4YKmb/ldsZnrz02WKK 2wGhkLNKm+xZEDgKN7x7aFgBXX6V3z4iJ4jmcr7+2ZWX/ACVuwkwcT7oWGoSWHqViAKH fTKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=pU9a7WDmDblNhHtORn5q1an88I7KvX3awfI/tpZswsc=; b=TyR5rwQzi/W8bGs4DW9gSOhRWIL5HIewBXHmmZR3FCwPCqZF20y2Bp4MeyHmmCTyLI WPJEPd4IeqBH8Z+omw2aANiiYru8ci3sBnq+aBm+7OOMvwK5NA0JLOTt71SFZ8B09KIo KZMPFkdTNLVx75jNHh2P0IM8o15XP6mxDQzZsBaiSCTAp+5srwaODLqND1I0DF/8tXAA 2pCQris1UNWBGIchg/bUbxU2e1BVjO4kW5AnoVNfnO89ykVNjX5Oxex/vv86KRn5RlqC 1vd79/jdBqz+MmKO5WoKRjd3HyJ4XpZEobX/lymvHSUTgShNfZ7toARCL5jXQeTBkkKq Mhdw== X-Gm-Message-State: APjAAAVMRzxL1+g30KspsZQDaWSPLREprvZi4YRmF4H9R7V+73qLI7JV iEWGW2YrU/TnOFU7JUaqXEc= X-Google-Smtp-Source: APXvYqw3itXpwcxCPWEGgT4oxNdiQSL++cL7fM7qnjdamhn1oCj7qCS8wG0y7AsQnIb8WWfLJWqK/Q== X-Received: by 2002:a6b:dc17:: with SMTP id s23mr67568306ioc.56.1563920903840; Tue, 23 Jul 2019 15:28:23 -0700 (PDT) Received: from cs-dulles.cs.umn.edu (cs-dulles.cs.umn.edu. [128.101.35.54]) by smtp.googlemail.com with ESMTPSA id f17sm41593017ioc.2.2019.07.23.15.28.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Jul 2019 15:28:23 -0700 (PDT) From: Navid Emamdoost Cc: emamd001@umn.edu, kjlu@umn.edu, smccaman@umn.edu, secalert@redhat.com, Navid Emamdoost , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] stmmac_dt_phy: null check the allocation Date: Tue, 23 Jul 2019 17:28:09 -0500 Message-Id: <20190723222809.9752-1-navid.emamdoost@gmail.com> X-Mailer: git-send-email 2.17.1 To: unlisted-recipients:; (no To-header on input) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org devm_kzalloc may fail and return NULL. So the null check is needed. Signed-off-by: Navid Emamdoost --- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 73fc2524372e..392f8d9539c1 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -342,10 +342,13 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data *plat, mdio = true; } - if (mdio) + if (mdio) { plat->mdio_bus_data = devm_kzalloc(dev, sizeof(struct stmmac_mdio_bus_data), GFP_KERNEL); + if (!plat->mdio_bus_data) + return -ENOMEM; + } return 0; }