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block/bochs.c: fix warning with _FORTIFY_SOURCE

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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 <kirill@shutemov.name>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Kirill A. Shutemov 2009-12-25 18:19:20 +00:00 committed by Blue Swirl
parent 5fdb3aa16a
commit 00ccf932a0
1 changed files with 2 additions and 1 deletions
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3
block/bochs.c
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@ -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))
{