1 files changed, 12 insertions, 12 deletions

diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index f496f236b9c0..29718042c6c9 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -437,7 +437,7 @@ tty3270_rcl_add(struct tty3270 *tp, char *input, int len)
 {
         struct string *s;
 
-        tp->rcl_walk = 0;
+        tp->rcl_walk = NULL;
         if (len <= 0)
                 return;
         if (tp->rcl_nr >= tp->rcl_max) {
@@ -466,12 +466,12 @@ tty3270_rcl_backward(struct kbd_data *kbd)
                 else if (!list_empty(&tp->rcl_lines))
                         tp->rcl_walk = tp->rcl_lines.prev;
                 s = tp->rcl_walk ? 
-                        list_entry(tp->rcl_walk, struct string, list) : 0;
+                        list_entry(tp->rcl_walk, struct string, list) : NULL;
                 if (tp->rcl_walk) {
                         s = list_entry(tp->rcl_walk, struct string, list);
                         tty3270_update_prompt(tp, s->string, s->len);
                 } else
-                        tty3270_update_prompt(tp, 0, 0);
+                        tty3270_update_prompt(tp, NULL, 0);
                 tty3270_set_timer(tp, 1);
         }
         spin_unlock_bh(&tp->view.lock);
@@ -553,7 +553,7 @@ tty3270_read_tasklet(struct raw3270_request *rrq)
          * has to be emitted to the tty and for 0x6d the screen
          * needs to be redrawn.
          */
-        input = 0;
+        input = NULL;
         len = 0;
         if (tp->input->string[0] == 0x7d) {
                 /* Enter: write input to tty. */
@@ -567,7 +567,7 @@ tty3270_read_tasklet(struct raw3270_request *rrq)
                         tty3270_update_status(tp);
                 }
                 /* Clear input area. */
-                tty3270_update_prompt(tp, 0, 0);
+                tty3270_update_prompt(tp, NULL, 0);
                 tty3270_set_timer(tp, 1);
         } else if (tp->input->string[0] == 0x6d) {
                 /* Display has been cleared. Redraw. */
@@ -808,8 +808,8 @@ tty3270_release(struct raw3270_view *view)
         tp = (struct tty3270 *) view;
         tty = tp->tty;
         if (tty) {
-                tty->driver_data = 0;
-                tp->tty = tp->kbd->tty = 0;
+                tty->driver_data = NULL;
+                tp->tty = tp->kbd->tty = NULL;
                 tty_hangup(tty);
                 raw3270_put_view(&tp->view);
         }
@@ -948,8 +948,8 @@ tty3270_close(struct tty_struct *tty, struct file * filp)
                 return;
         tp = (struct tty3270 *) tty->driver_data;
         if (tp) {
-                tty->driver_data = 0;
-                tp->tty = tp->kbd->tty = 0;
+                tty->driver_data = NULL;
+                tp->tty = tp->kbd->tty = NULL;
                 raw3270_put_view(&tp->view);
         }
 }
@@ -1673,7 +1673,7 @@ tty3270_set_termios(struct tty_struct *tty, struct termios *old)
                 new = L_ECHO(tty) ? TF_INPUT: TF_INPUTN;
                 if (new != tp->inattr) {
                         tp->inattr = new;
-                        tty3270_update_prompt(tp, 0, 0);
+                        tty3270_update_prompt(tp, NULL, 0);
                         tty3270_set_timer(tp, 1);
                 }
         }
@@ -1759,7 +1759,7 @@ void
 tty3270_notifier(int index, int active)
 {
         if (active)
-                tty_register_device(tty3270_driver, index, 0);
+                tty_register_device(tty3270_driver, index, NULL);
         else
                 tty_unregister_device(tty3270_driver, index);
 }
@@ -1818,7 +1818,7 @@ tty3270_exit(void)
 
         raw3270_unregister_notifier(tty3270_notifier);
         driver = tty3270_driver;
-        tty3270_driver = 0;
+        tty3270_driver = NULL;
         tty_unregister_driver(driver);
         tty3270_del_views();
 }