From patchwork Sun Dec 20 01:39:16 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirill A . Shutemov" X-Patchwork-Id: 41494 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id A76B1B6F17 for ; Sun, 20 Dec 2009 12:51:02 +1100 (EST) Received: from localhost ([127.0.0.1]:46177 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NMAwl-0003td-UG for incoming@patchwork.ozlabs.org; Sat, 19 Dec 2009 20:51:00 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NMAm0-0007y4-No for qemu-devel@nongnu.org; Sat, 19 Dec 2009 20:39:52 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NMAlt-0007pY-CD for qemu-devel@nongnu.org; Sat, 19 Dec 2009 20:39:50 -0500 Received: from [199.232.76.173] (port=54474 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NMAls-0007ol-On for qemu-devel@nongnu.org; Sat, 19 Dec 2009 20:39:44 -0500 Received: from mail-fx0-f222.google.com ([209.85.220.222]:53674) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NMAls-0004mU-8p for qemu-devel@nongnu.org; Sat, 19 Dec 2009 20:39:44 -0500 Received: by mail-fx0-f222.google.com with SMTP id 22so4042055fxm.2 for ; Sat, 19 Dec 2009 17:39:43 -0800 (PST) Received: by 10.223.55.152 with SMTP id u24mr7313284fag.24.1261273183901; Sat, 19 Dec 2009 17:39:43 -0800 (PST) Received: from localhost.localdomain (a88-114-220-92.elisa-laajakaista.fi [88.114.220.92]) by mx.google.com with ESMTPS id 13sm6982256fks.45.2009.12.19.17.39.42 (version=SSLv3 cipher=RC4-MD5); Sat, 19 Dec 2009 17:39:43 -0800 (PST) From: "Kirill A. Shutemov" To: qemu-devel@nongnu.org Date: Sun, 20 Dec 2009 03:39:16 +0200 Message-Id: <1261273167-3240-7-git-send-email-kirill@shutemov.name> X-Mailer: git-send-email 1.6.5.6 In-Reply-To: <1261273167-3240-6-git-send-email-kirill@shutemov.name> References: <1261273167-3240-1-git-send-email-kirill@shutemov.name> <1261273167-3240-2-git-send-email-kirill@shutemov.name> <1261273167-3240-3-git-send-email-kirill@shutemov.name> <1261273167-3240-4-git-send-email-kirill@shutemov.name> <1261273167-3240-5-git-send-email-kirill@shutemov.name> <1261273167-3240-6-git-send-email-kirill@shutemov.name> X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) Cc: "Kirill A. Shutemov" Subject: [Qemu-devel] [PATCH 07/18] block/bochs.c: fix warning with _FORTIFY_SOURCE X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org CC block/bochs.o cc1: warnings being treated as errors block/bochs.c: In function 'seek_to_sector': block/bochs.c:202: error: ignoring return value of 'read', declared with attribute warn_unused_result make: *** [block/bochs.o] Error 1 Signed-off-by: Kirill A. Shutemov --- block/bochs.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/block/bochs.c b/block/bochs.c index bac81c4..f6a18f2 100644 --- a/block/bochs.c +++ b/block/bochs.c @@ -199,7 +199,8 @@ static inline int seek_to_sector(BlockDriverState *bs, int64_t sector_num) // read in bitmap for current extent lseek(s->fd, bitmap_offset + (extent_offset / 8), SEEK_SET); - read(s->fd, &bitmap_entry, 1); + if (read(s->fd, &bitmap_entry, 1) != 1) + return -1; if (!((bitmap_entry >> (extent_offset % 8)) & 1)) {