From: Jo-Philipp Wich <jow@openwrt.org>
Date: Thu, 25 Jul 2013 12:23:07 +0000 (+0200)
Subject: block: discard vfat labels with only spaces
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fubox.git;a=commitdiff_plain;h=7c922b0f11c4450d0b5fd04d886eed64b2cf7abf

block: discard vfat labels with only spaces
---

diff --git a/libblkid-tiny/vfat.c b/libblkid-tiny/vfat.c
index dd53d68..ef66769 100644
--- a/libblkid-tiny/vfat.c
+++ b/libblkid-tiny/vfat.c
@@ -277,9 +277,12 @@ static int set_label(blkid_probe pr, unsigned char *vol_label)
 {
 	unsigned char *c;
 
-	for (c = vol_label + 10; c > vol_label && *c == ' '; c--)
+	for (c = vol_label + 10; c >= vol_label && *c == ' '; c--)
 		*c = 0;
 
+	if (!*vol_label)
+		return 0;
+
 	return blkid_probe_set_label(pr, vol_label, 11);
 }