From 8cdf0a831c0816c4d38b28c878a7fc3de361adfb Mon Sep 17 00:00:00 2001
From: Patrick Caulfield <pcaulfie@redhat.com>
Date: Tue, 18 Dec 2001 14:39:32 +0000
Subject: [PATCH] Wipe the first label if writing the second one failed.

---
 lib/label/label.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/label/label.c b/lib/label/label.c
index a27729434..1ea94be0a 100644
--- a/lib/label/label.c
+++ b/lib/label/label.c
@@ -267,8 +267,16 @@ int label_write(struct device *dev, struct label *label)
     /* Write another at the end of the device */
     status2 = dev_write(dev, offset[1], sizeof(struct label_ondisk) + label->datalen, block);
     if (!status2)
+    {
+	char zerobuf[sizeof(struct label_ondisk)];
 	log_error("Error writing label 2\n");
 
+	/* Wipe the first label so it doesn't get confusing */
+	memset(zerobuf, 0, sizeof(struct label_ondisk));
+	if (!dev_write(dev, offset[0], sizeof(struct label_ondisk), zerobuf))
+	    log_error("Error erasing label 1\n");
+    }
+
     pool_free(label_pool, block);
     dev_close(dev);