File 0182-fix_add_drivers_hang.patch of Package dracut.3330

From: Fabian Vogt <fvogt@suse.com>
Date: Wed, 23 Sep 2015 12:12:08 +0200
Subject: [PATCH] Fix possible hang in dracut
References: bsc#923116

- Caused by add_drivers+=" " in dracut.conf (bsc#923116)

Signed-off-by: Fabian Vogt <fvogt@suse.com>
---
 dracut.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: dracut-037/dracut.sh
===================================================================
--- dracut-037.orig/dracut.sh
+++ dracut-037/dracut.sh
@@ -1369,7 +1369,7 @@ if [[ $no_kernel != yes ]]; then
         hostonly='' instmods $drivers
     fi
 
-    if [[ $add_drivers ]]; then
+    if [[ -n "${add_drivers// }" ]]; then
         hostonly='' instmods -c $add_drivers
     fi
     if [[ $force_drivers ]]; then