X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=daemon%2Fzero.c;h=4d06505260379d8adcecb6d31f2319c5169e0ef7;hb=f5d52fa3c00e525cd5d86089b85f970a5c4e7c21;hp=ce45ae233c91dfa5ac6be33b699bb759c37f9021;hpb=84fc760439e82e6b3616abd0d1f9bd7d7eb01ec0;p=libguestfs.git

diff --git a/daemon/zero.c b/daemon/zero.c
index ce45ae2..4d06505 100644
--- a/daemon/zero.c
+++ b/daemon/zero.c
@@ -42,9 +42,16 @@ do_zero (const char *device)
   memset (buf, 0, sizeof buf);
 
   for (i = 0; i < 32; ++i)
-    (void) write (fd, buf, sizeof buf);
-
-  close (fd);
+    if (write (fd, buf, sizeof buf) != sizeof buf) {
+      reply_with_perror ("write: %s", device);
+      close (fd);
+      return -1;
+    }
+
+  if (close (fd) == -1) {
+    reply_with_perror ("close: %s", device);
+    return -1;
+  }
 
   return 0;
 }