~/cvsf/nut/devel ~/cvsf/nut/devel diff -up nut-2.4.3/drivers/upsdrvctl.c.portcrash nut-2.4.3/drivers/upsdrvctl.c --- nut-2.4.3/drivers/upsdrvctl.c.portcrash 2010-07-26 11:38:19.830941009 +0200 +++ nut-2.4.3/drivers/upsdrvctl.c 2010-07-26 11:39:32.302764246 +0200 @@ -131,7 +131,7 @@ static void stop_driver(const ups_t *ups ups->driver, ups->upsname); ret = stat(pidfn, &fs); - if (ret != 0) { + if ((ret != 0) && (ups->port != NULL)) { snprintf(pidfn, sizeof(pidfn), "%s/%s-%s.pid", altpidpath(), ups->driver, xbasename(ups->port)); ret = stat(pidfn, &fs);