}
                if (errors) {
                        if (errors & dupchan_err) {
-                               DPRINTK("comedi%d: " DRIVER_NAME
-                                       ": ao_cmdtest: "
-                                       "entries in chanlist must contain no "
-                                       "duplicate channels\n", dev->minor);
+                               dev_dbg(dev->class_dev,
+                                       "%s: entries in chanlist must contain no duplicate channels\n",
+                                       __func__);
                        }
                        if (errors & range_err) {
-                               DPRINTK("comedi%d: " DRIVER_NAME
-                                       ": ao_cmdtest: "
-                                       "entries in chanlist must all have "
-                                       "the same range index\n", dev->minor);
+                               dev_dbg(dev->class_dev,
+                                       "%s: entries in chanlist must all have the same range index\n",
+                                       __func__);
                        }
                        err++;
                }