mdraid/module-setup.sh: fixed print-cmdline for empty UUID

fixes

/usr/lib/dracut/modules.d/90mdraid/module-setup.sh: line 60:
_activated["${UUID}"]: bad array subscript

Thanks to Jan ONDREJ for spotting this!

(cherry picked from commit 19bb14c3467233f8c98f76b3fa57047a3a31e1a3)

diff --git a/modules.d/90mdraid/module-setup.sh b/modules.d/90mdraid/module-setup.sh
index 1e03847fd15c376aee7c028285177933b1b18092..815a3ebc37c2520b1320b9a72c18a1902a5e1185 100755 (executable)
--- a/modules.d/90mdraid/module-setup.sh
+++ b/modules.d/90mdraid/module-setup.sh
@@ -50,6 +50,8 @@ cmdline() {
             done
         )
 
+        [[ -z "$UUID" ]] && continue
+
         if ! [[ ${_activated[${UUID}]} ]]; then
             printf "%s" " rd.md.uuid=${UUID}"
             _activated["${UUID}"]=1