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gen_init_cpio: fixed fwrite warning

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On compilers with security warnings enabled by default, we get:

usr/gen_init_cpio.c: In function ‘cpio_mkfile’:
usr/gen_init_cpio.c:357: warning: ignoring return value of ‘fwrite’,
                                  declared with attribute warn_unused_result

So check the return value and handle errors accordingly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Mike Frysinger 2009-12-09 06:55:19 -05:00 committed by Michal Marek
parent d9bdcc72ec
commit 6d87fea4dd
1 changed files with 4 additions and 1 deletions
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usr/gen_init_cpio.c
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@ -354,7 +354,10 @@ static int cpio_mkfile(const char *name, const char *location,
push_pad();
if (size) {
fwrite(filebuf, size, 1, stdout);
if (fwrite(filebuf, size, 1, stdout) != 1) {
fprintf(stderr, "writing filebuf failed\n");
goto error;
}
offset += size;
push_pad();
}