diff -up hplip-3.12.2/io/hpmud/pp.c.release-parport hplip-3.12.2/io/hpmud/pp.c
--- hplip-3.12.2/io/hpmud/pp.c.release-parport	2012-02-01 11:53:52.000000000 +0000
+++ hplip-3.12.2/io/hpmud/pp.c	2012-03-21 16:43:31.876908024 +0000
@@ -1240,6 +1240,8 @@ int __attribute__ ((visibility ("hidden"
                if (ma.support != HPMUD_SUPPORT_TYPE_HPLIP)
                {
                   BUG("ignoring %s support=%d\n", dev, ma.support);
+                  release_pp(fd);
+                  close(fd);
                   continue;           /* ignor, not supported */
                }