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=-9.1 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=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 8CC2BC282CE for ; Wed, 22 May 2019 20:02:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3F9F720862 for ; Wed, 22 May 2019 20:02:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558555323; bh=NiqXvwojC1D7C1RXV3saA1gnnXcxvKec8v+zqiUIXuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ExHJjxbILiA6HuqCV18mOhZF2IqqC6CsG97HhL1B4KoxxZh/pkh5cMzFmZv+k+as2 hGuokjP3WLO65zcChFFLxCebzQO84dKXNo9JTsFmpJt2bfQgfwP92+m+iuwrjOxt1p /3OduUupiNe1q+YtOOQugVI1AnZRGhAq0FpzInnI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730355AbfEVTWN (ORCPT ); Wed, 22 May 2019 15:22:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:42850 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730318AbfEVTWK (ORCPT ); Wed, 22 May 2019 15:22:10 -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 C8ED82177E; Wed, 22 May 2019 19:22:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558552929; bh=NiqXvwojC1D7C1RXV3saA1gnnXcxvKec8v+zqiUIXuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UhCt7dsjboRV7nV70hESEq0aOoDzXQKlhTn43fLiEsAfGZhUkg3Z6QfV9eA5lLLyB tWmbS/yORaY7wHjsujgqu7sOClsrBVexynmCo9/Hw7DridSZmgqu6Pq5gHj8Rzc2PE crv7P8Q+kBZIfXq+OVMfDCttfnmRPThO119Y8YMc= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bo YU , Michael Ellerman , Sasha Levin , linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 5.1 035/375] powerpc/boot: Fix missing check of lseek() return value Date: Wed, 22 May 2019 15:15:35 -0400 Message-Id: <20190522192115.22666-35-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190522192115.22666-1-sashal@kernel.org> References: <20190522192115.22666-1-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: Bo YU [ Upstream commit 5d085ec04a000fefb5182d3b03ee46ca96d8389b ] This is detected by Coverity scan: CID: 1440481 Signed-off-by: Bo YU Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/boot/addnote.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/boot/addnote.c b/arch/powerpc/boot/addnote.c index 9d9f6f334d3cc..3da3e2b1b51bc 100644 --- a/arch/powerpc/boot/addnote.c +++ b/arch/powerpc/boot/addnote.c @@ -223,7 +223,11 @@ main(int ac, char **av) PUT_16(E_PHNUM, np + 2); /* write back */ - lseek(fd, (long) 0, SEEK_SET); + i = lseek(fd, (long) 0, SEEK_SET); + if (i < 0) { + perror("lseek"); + exit(1); + } i = write(fd, buf, n); if (i < 0) { perror("write"); -- 2.20.1