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;
 
@@ -1544,7 +1542,6 @@ 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++) {
@@ -1556,10 +1553,7 @@ static void dgap_cleanup_tty(struct board_t *brd)
 	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++) {
@@ -1571,8 +1565,6 @@ static void dgap_cleanup_tty(struct board_t *brd)
 	tty_unregister_driver(brd->print_driver);
 	put_tty_driver(brd->print_driver);
 	kfree(brd->printer_ports);
-		brd->dgap_major_transparent_print_registered = FALSE;
-	}
 }
 
 /*=======================================================================

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;