From 6d87fea4dd7152df4a4605a3846c3bf10f869e0c Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 9 Dec 2009 06:55:19 -0500 Subject: [PATCH] gen_init_cpio: fixed fwrite warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Michal Marek --- usr/gen_init_cpio.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c index 83b3dde1a83..b2b3c2d1cf8 100644 --- a/usr/gen_init_cpio.c +++ b/usr/gen_init_cpio.c @@ -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(); }