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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 9E0F3C33CAF for ; Thu, 16 Jan 2020 17:55:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6DADC2073A for ; Thu, 16 Jan 2020 17:55:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579197334; bh=PkaWdYxqxdWMRUsmEVtqI7yY+n4bIU56XI/NRCZjYLc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Qewau1j0n9C9E0oZFNpgTqefusJhrI43mPnmbhiYBXoIweW+AFogakUo/dX0KKGS9 wz0MP4PL9mam38pUjab9cpif9K92eYPmmtDfx8MEYd0yxQ7MDoircJafieAvJ4aJ+W 8L7k3VlNlzO+xGVoao79ul0HE2TYoPiHBAAkKDbE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2394444AbgAPRzd (ORCPT ); Thu, 16 Jan 2020 12:55:33 -0500 Received: from mail.kernel.org ([198.145.29.99]:35056 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2394112AbgAPRoP (ORCPT ); Thu, 16 Jan 2020 12:44:15 -0500 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 12CEC2475E; Thu, 16 Jan 2020 17:44:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579196655; bh=PkaWdYxqxdWMRUsmEVtqI7yY+n4bIU56XI/NRCZjYLc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z2Yv6oGDu/73qL1wVyB2YgBOUSu9qrutu64Xugk+hjVJwpVzclGdqHX9VW4/w89Wt /6eYqcj7fEWC4PdL8kzdTW3lVf7CvCoKeoNdzBAnHyZmpR9mHyCYlUE0H5qQ4bfSM2 wkrgCqUCOcQekad6of2OQNfiUBrPGoLMnMAKtNuQ= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Nicholas Mc Guire , Sean Young , Mauro Carvalho Chehab , Sasha Levin , linux-media@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 062/174] media: cx23885: check allocation return Date: Thu, 16 Jan 2020 12:40:59 -0500 Message-Id: <20200116174251.24326-62-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200116174251.24326-1-sashal@kernel.org> References: <20200116174251.24326-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nicholas Mc Guire [ Upstream commit a3d7f22ef34ec4206b50ee121384d5c8bebd5591 ] Checking of kmalloc() seems to have been committed - as cx23885_dvb_register() is checking for != 0 return, returning -ENOMEM should be fine here. While at it address the coccicheck suggestion to move to kmemdup rather than using kmalloc+memcpy. Fixes: 46b21bbaa8a8 ("[media] Add support for DViCO FusionHDTV DVB-T Dual Express2") Signed-off-by: Nicholas Mc Guire Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/pci/cx23885/cx23885-dvb.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c index e543cbbf2ec4..8fe78b8b1c25 100644 --- a/drivers/media/pci/cx23885/cx23885-dvb.c +++ b/drivers/media/pci/cx23885/cx23885-dvb.c @@ -1452,8 +1452,9 @@ static int dvb_register(struct cx23885_tsport *port) if (fe0->dvb.frontend != NULL) { struct i2c_adapter *tun_i2c; - fe0->dvb.frontend->sec_priv = kmalloc(sizeof(dib7000p_ops), GFP_KERNEL); - memcpy(fe0->dvb.frontend->sec_priv, &dib7000p_ops, sizeof(dib7000p_ops)); + fe0->dvb.frontend->sec_priv = kmemdup(&dib7000p_ops, sizeof(dib7000p_ops), GFP_KERNEL); + if (!fe0->dvb.frontend->sec_priv) + return -ENOMEM; tun_i2c = dib7000p_ops.get_i2c_master(fe0->dvb.frontend, DIBX000_I2C_INTERFACE_TUNER, 1); if (!dvb_attach(dib0070_attach, fe0->dvb.frontend, tun_i2c, &dib7070p_dib0070_config)) return -ENODEV; -- 2.20.1