dracut-functions: inst_dir() handle relative symlinks

dracut-functions

@@ -290,12 +290,12 @@ inst_dir() {
             inst_dir "$target"
             inst_symlink "$_file"
         else
-            [[ -h ${initdir}$_file ]] && _file=$(readlink "${initdir}$_file")
+            [[ -h ${initdir}/$_file ]] && _file=$(readlink "${initdir}/$_file")
             # create directory
-            mkdir -m 0755 -p "${initdir}$_file" || return 1
+            [[ -e "${initdir}/$_file" ]] || mkdir -m 0755 -p "${initdir}/$_file" || return 1
             if [[ -d "$_file" ]]; then
-                chmod --reference="$_file" "${initdir}$_file"
-                chmod u+w "${initdir}$_file"
+                chmod --reference="$_file" "${initdir}/$_file"
+                chmod u+w "${initdir}/$_file"
             fi
         fi
     done