[PATCH] s390: 3270 fullscreen view

      Martin Schwidefsky <schwidefsky@de.ibm.com>

Fix fullscreen view of the 3270 device driver.

Signed-off-by: Richard Hitt <rbh00@utsglobal.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 13 insertions, 14 deletions

diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 7db5ebce7f0..4b906937038 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -653,18 +653,12 @@ tty3270_activate(struct raw3270_view *view)
         tp->update_flags = TTY_UPDATE_ALL;
         tty3270_set_timer(tp, 1);
         spin_unlock_irqrestore(&tp->view.lock, flags);
-        start_tty(tp->tty);
         return 0;
 }
 
 static void
 tty3270_deactivate(struct raw3270_view *view)
 {
-        struct tty3270 *tp;
-
-        tp = (struct tty3270 *) view;
-        if (tp && tp->tty)
-                stop_tty(tp->tty);
 }
 
 static int
@@ -716,13 +710,13 @@ tty3270_alloc_view(void)
                                   tp->freemem_pages[pages], PAGE_SIZE);
         }
         tp->write = raw3270_request_alloc(TTY3270_OUTPUT_BUFFER_SIZE);
-        if (!tp->write)
+        if (IS_ERR(tp->write))
                 goto out_pages;
         tp->read = raw3270_request_alloc(0);
-        if (!tp->read)
+        if (IS_ERR(tp->read))
                 goto out_write;
         tp->kreset = raw3270_request_alloc(1);
-        if (!tp->kreset)
+        if (IS_ERR(tp->kreset))
                 goto out_read;
         tp->kbd = kbd_alloc();
         if (!tp->kbd)
@@ -845,7 +839,8 @@ tty3270_del_views(void)
         int i;
 
         for (i = 0; i < tty3270_max_index; i++) {
-                tp = (struct tty3270 *) raw3270_find_view(&tty3270_fn, i);
+                tp = (struct tty3270 *)
+                        raw3270_find_view(&tty3270_fn, i + RAW3270_FIRSTMINOR);
                 if (!IS_ERR(tp))
                         raw3270_del_view(&tp->view);
         }
@@ -871,7 +866,9 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
         if (tty->count > 1)
                 return 0;
         /* Check if the tty3270 is already there. */
-        tp = (struct tty3270 *) raw3270_find_view(&tty3270_fn, tty->index);
+        tp = (struct tty3270 *)
+                raw3270_find_view(&tty3270_fn,
+                                  tty->index + RAW3270_FIRSTMINOR);
         if (!IS_ERR(tp)) {
                 tty->driver_data = tp;
                 tty->winsize.ws_row = tp->view.rows - 2;
@@ -903,7 +900,8 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
                      (void (*)(unsigned long)) tty3270_read_tasklet,
                      (unsigned long) tp->read);
 
-        rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index);
+        rc = raw3270_add_view(&tp->view, &tty3270_fn,
+                              tty->index + RAW3270_FIRSTMINOR);
         if (rc) {
                 tty3270_free_view(tp);
                 return rc;
@@ -911,8 +909,8 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 
         rc = tty3270_alloc_screen(tp);
         if (rc) {
-                raw3270_del_view(&tp->view);
                 raw3270_put_view(&tp->view);
+                raw3270_del_view(&tp->view);
                 return rc;
         }
 
@@ -1780,7 +1778,7 @@ tty3270_init(void)
         struct tty_driver *driver;
         int ret;
 
-        driver = alloc_tty_driver(256);
+        driver = alloc_tty_driver(RAW3270_MAXDEVS);
         if (!driver)
                 return -ENOMEM;
 
@@ -1794,6 +1792,7 @@ tty3270_init(void)
         driver->driver_name = "ttyTUB";
         driver->name = "ttyTUB";
         driver->major = IBM_TTY3270_MAJOR;
+        driver->minor_start = RAW3270_FIRSTMINOR;
         driver->type = TTY_DRIVER_TYPE_SYSTEM;
         driver->subtype = SYSTEM_TYPE_TTY;
         driver->init_termios = tty_std_termios;