From 9e98dd15e8cdf8dc410d2c706d1a0d410580c24f Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Thu, 4 Mar 2010 23:11:27 -0300 Subject: [PATCH 05/42] block/bochs.c: fix warning with _FORTIFY_SOURCE RH-Author: Juan Quintela Message-id: Patchwork-id: 7535 O-Subject: [PATCH 05/32] block/bochs.c: fix warning with _FORTIFY_SOURCE Bugzilla: 567099 RH-Acked-by: Kevin Wolf RH-Acked-by: Amit Shah RH-Acked-by: Marcelo Tosatti From: Kirill A. Shutemov 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 Signed-off-by: Blue Swirl (cherry picked from commit 00ccf932a0e0f0f1cbc6cdb9db5495dd5ebedd5a) Signed-off-by: Juan Quintela --- block/bochs.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) Signed-off-by: Eduardo Habkost --- 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)) { -- 1.6.3.rc4.29.g8146