dracut/0001-dracut.sh-harden-host_modalias-reading.patch

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From 57f90974f9d7c11e06c2b3f2b7e4b47801f380cc 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"