From 62f8a2b63cdf71e70a6ba723fce869ea769d01ad Mon Sep 17 00:00:00 2001
From: Andrey Borzenkov <arvidjaar@mail.ru>
Date: Sun, 9 May 2010 22:23:58 +0400
Subject: Harden check for used modules in hostonly mode

Make sure that we do not accept module name which is substring of
some other module name. This resulted in piix being mistakenly loaded
together with ata_piix. It completely broke DVD access here.

Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru>
---
 dracut-functions | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dracut-functions b/dracut-functions
index a1873c5d..c9affc74 100755
--- a/dracut-functions
+++ b/dracut-functions
@@ -657,7 +657,7 @@ instmods() {
 	        [[ -f $initdir/$1 ]] && { shift; continue; }
 		# If we are building a host-specific initramfs and this
 		# module is not already loaded, move on to the next one.
-		[[ $hostonly ]] && ! grep -q "${mod//-/_}" /proc/modules && \
+		[[ $hostonly ]] && ! grep -qe "\<${mod//-/_}\>" /proc/modules && \
 	        ! echo $add_drivers | grep -qe "\<${mod}\>" &&	{
 		    shift; continue; 
 		}
-- 
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