From: Karel Zak <kzak@redhat.com>
Date: Wed, 16 Apr 2008 12:13:42 +0000 (+0200)
Subject: mkswap: set errno=0 in write_all()
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89fb9aeb55813dfecf385ede04c5b371bbd5e11e;p=util-linux

mkswap: set errno=0 in write_all()

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/disk-utils/mkswap.c b/disk-utils/mkswap.c
index dc3a3d30..10068b71 100644
--- a/disk-utils/mkswap.c
+++ b/disk-utils/mkswap.c
@@ -469,8 +469,10 @@ check_mount(void) {
 static int
 write_all(int fd, const void *buf, size_t count) {
 	while(count) {
-		ssize_t tmp = write(fd, buf, count);
+		ssize_t tmp;
 
+		errno = 0;
+		tmp = write(fd, buf, count);
 		if (tmp > 0) {
 			count -= tmp;
 			if (count)