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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 B86CBC432C0 for ; Tue, 3 Dec 2019 22:45:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7790420803 for ; Tue, 3 Dec 2019 22:45:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413114; bh=fGEGqqPn/RtkHfVgz6CHl74WTaoHeZ1ndAUeCWAUmQU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KVn41kRiLPFXBfvU3Yrj4DnV0oAlcle1Mz8NXy8zMuaH3JtrZgSKwnhbN4ZmNoC2I YIDHmfHQzXxUyyKTkyhKxVQ9YYprOKOZizXoOiajCuqBsDhuB9VzzPJdSN8xJB70WM rvlKisHi288lXQmj9MEd2ZMrOQATFPIdbkFBWLdc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729019AbfLCWpM (ORCPT ); Tue, 3 Dec 2019 17:45:12 -0500 Received: from mail.kernel.org ([198.145.29.99]:33474 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728763AbfLCWpI (ORCPT ); Tue, 3 Dec 2019 17:45:08 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 86E89207DD; Tue, 3 Dec 2019 22:45:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413108; bh=fGEGqqPn/RtkHfVgz6CHl74WTaoHeZ1ndAUeCWAUmQU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=M7sHPR4EZOrZtTu16ZIAuLBQDEbAOYqfbfc7LhXyYVbkfnRZLCLpSjwig78qHFe86 jDwAanLRhLT5yDRriWdkWAz/Ef76IXwLJHv/tsVdRBJvSdmXdJPokEd2YDhSvNKB4l m2RdsBJtlKah+85wjb4rz4Gxd3kHoV0tbpZpmRIk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jakub Kicinski , Simon Horman , "David S. Miller" Subject: [PATCH 5.3 128/135] selftests: bpf: test_sockmap: handle file creation failures gracefully Date: Tue, 3 Dec 2019 23:36:08 +0100 Message-Id: <20191203213045.237909265@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191203213005.828543156@linuxfoundation.org> References: <20191203213005.828543156@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jakub Kicinski [ Upstream commit 4b67c515036313f3c3ecba3cb2babb9cbddb3f85 ] test_sockmap creates a temporary file to use for sendpage. this may fail for various reasons. Handle the error rather than segfault. Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- tools/testing/selftests/bpf/test_sockmap.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/tools/testing/selftests/bpf/test_sockmap.c +++ b/tools/testing/selftests/bpf/test_sockmap.c @@ -332,6 +332,10 @@ static int msg_loop_sendpage(int fd, int int i, fp; file = fopen(".sendpage_tst.tmp", "w+"); + if (!file) { + perror("create file for sendpage"); + return 1; + } for (i = 0; i < iov_length * cnt; i++, k++) fwrite(&k, sizeof(char), 1, file); fflush(file); @@ -339,6 +343,11 @@ static int msg_loop_sendpage(int fd, int fclose(file); fp = open(".sendpage_tst.tmp", O_RDONLY); + if (fp < 0) { + perror("reopen file for sendpage"); + return 1; + } + clock_gettime(CLOCK_MONOTONIC, &s->start); for (i = 0; i < cnt; i++) { int sent = sendfile(fd, fp, NULL, iov_length);