From ffecc452321bbef2c0e1efca09c2077775448141 Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Fri, 13 Sep 2013 16:33:01 +0200

Subject: [PATCH] dracut.sh: harden host_modalias reading

Some weird PPC driver make their modulias unreadable

$ cat /sys/devices/vio/4000/modalias

cat: /sys/devices/vio/4000/modalias: No such device

---

 dracut.sh | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dracut.sh b/dracut.sh

index bd905e3..fd27846 100755

--- a/dracut.sh

+++ b/dracut.sh

@@ -921,7 +921,7 @@ if [[ $hostonly ]]; then

     declare -A host_modalias

     find  /sys/devices/ -name modalias -print > "$initdir/.modalias"

     while read m; do

-        host_modalias["$(<"$m")"]=1

+        modalias="$(<"$m")" && [[ $modalias ]] && host_modalias["$modalias"]=1

     done < "$initdir/.modalias"

     rm -f -- "$initdir/.modalias"