[SCM] debian-live branch, master, updated. debian/1.136.3-1-8-g5e46790

[Marco Amadori]

The following commit has been merged in the master branch:
commit 5e46790447292b7d62e3d84ab1b544bb1fb9306a
Author: Marco Amadori <marco.amadori at gmail.com>
Date:   Thu Aug 7 00:07:57 2008 +0200

    Be sure that the discovered filesystem is not null.
    
    - While scanning for a filesystem on a disk, the klibc utility can
      return a null string if it not finds a filesystem (e.g. on a container
      partition), and grepping for a null string either reports true if
      escaped or hangs grep if not escaped. Both conditions must be avoided
      in order to report that the kernel supports the filesystem named as
      the string.
    
    Signed-off-by: Marco Amadori <marco.amadori at gmail.com>

diff --git a/scripts/live-helpers b/scripts/live-helpers
index e1f69dd..619cbb4 100644
--- a/scripts/live-helpers
+++ b/scripts/live-helpers
@@ -33,6 +33,12 @@ is_supported_fs ()
 {
 	fstype="${1}"
 
+	# Validate input first
+	if [ -z "${fstype}" ]
+	then
+		return 1
+	fi
+
 	# Try to look if it is already supported by the kernel
 	if grep -q ${fstype} /proc/filesystems
 	then

-- 
debian-live