staging: dgap: remove useless variable

dgap_major_serial_registered and dgap_major_transparent_print_registered
could be checked whether a board is initialized.
But it doesn't need to check that variables becasue dgap module
isn't calling the dgap_cleanup_tty() without initializing
for a board completely.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgap/dgap.c

@@ -1320,11 +1320,9 @@ static int dgap_tty_register(struct board_t *brd)
 	if (rc < 0)
 		goto unregister_serial_drv;
 
-	brd->dgap_major_serial_registered = TRUE;
 	dgap_boards_by_major[brd->serial_driver->major] = brd;
 	brd->dgap_serial_major = brd->serial_driver->major;
 
-	brd->dgap_major_transparent_print_registered = TRUE;
 	dgap_boards_by_major[brd->print_driver->major] = brd;
 	brd->dgap_transparent_print_major = brd->print_driver->major;
 
@@ -1544,35 +1542,29 @@ static void dgap_cleanup_tty(struct board_t *brd)
 	struct device *dev;
 	int i;
 
-	if (brd->dgap_major_serial_registered) {
-		dgap_boards_by_major[brd->serial_driver->major] = NULL;
-		brd->dgap_serial_major = 0;
-		for (i = 0; i < brd->nasync; i++) {
-			tty_port_destroy(&brd->serial_ports[i]);
-			dev = brd->channels[i]->ch_tun.un_sysfs;
-			dgap_remove_tty_sysfs(dev);
-			tty_unregister_device(brd->serial_driver, i);
-		}
-		tty_unregister_driver(brd->serial_driver);
-		put_tty_driver(brd->serial_driver);
-		kfree(brd->serial_ports);
-		brd->dgap_major_serial_registered = FALSE;
-	}
-
-	if (brd->dgap_major_transparent_print_registered) {
-		dgap_boards_by_major[brd->print_driver->major] = NULL;
-		brd->dgap_transparent_print_major = 0;
-		for (i = 0; i < brd->nasync; i++) {
-			tty_port_destroy(&brd->printer_ports[i]);
-			dev = brd->channels[i]->ch_pun.un_sysfs;
-			dgap_remove_tty_sysfs(dev);
-			tty_unregister_device(brd->print_driver, i);
-		}
-		tty_unregister_driver(brd->print_driver);
-		put_tty_driver(brd->print_driver);
-		kfree(brd->printer_ports);
-		brd->dgap_major_transparent_print_registered = FALSE;
+	dgap_boards_by_major[brd->serial_driver->major] = NULL;
+	brd->dgap_serial_major = 0;
+	for (i = 0; i < brd->nasync; i++) {
+		tty_port_destroy(&brd->serial_ports[i]);
+		dev = brd->channels[i]->ch_tun.un_sysfs;
+		dgap_remove_tty_sysfs(dev);
+		tty_unregister_device(brd->serial_driver, i);
+	}
+	tty_unregister_driver(brd->serial_driver);
+	put_tty_driver(brd->serial_driver);
+	kfree(brd->serial_ports);
+
+	dgap_boards_by_major[brd->print_driver->major] = NULL;
+	brd->dgap_transparent_print_major = 0;
+	for (i = 0; i < brd->nasync; i++) {
+		tty_port_destroy(&brd->printer_ports[i]);
+		dev = brd->channels[i]->ch_pun.un_sysfs;
+		dgap_remove_tty_sysfs(dev);
+		tty_unregister_device(brd->print_driver, i);
 	}
+	tty_unregister_driver(brd->print_driver);
+	put_tty_driver(brd->print_driver);
+	kfree(brd->printer_ports);
 }
 
 /*=======================================================================

drivers/staging/dgap/dgap.h

@@ -586,9 +586,6 @@ struct board_t {
 	struct tty_port *printer_ports;
 	char		print_name[200];
 
-	u32		dgap_major_serial_registered;
-	u32		dgap_major_transparent_print_registered;
-
 	u32		dgap_serial_major;
 	u32		dgap_transparent_print_major;