Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic

Patches from David Howells <dhowells@redhat.com>:

This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.

Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.

* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/asm-generic
  UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
  c6x: remove c6x signal.h
  UAPI: Split compound conditionals containing __KERNEL__ in Arm64
  UAPI: Fix the guards on various asm/unistd.h files

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 24 insertions, 10 deletions

diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 1928f3458d1..482ee028f84 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -842,17 +842,14 @@ static struct raw3270_fn tty3270_fn = {
 };
 
 /*
- * This routine is called whenever a 3270 tty is opened.
+ * This routine is called whenever a 3270 tty is opened first time.
  */
-static int
-tty3270_open(struct tty_struct *tty, struct file * filp)
+static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	struct raw3270_view *view;
 	struct tty3270 *tp;
 	int i, rc;
 
-	if (tty->count > 1)
-		return 0;
 	/* Check if the tty3270 is already there. */
 	view = raw3270_find_view(&tty3270_fn,
 				  tty->index + RAW3270_FIRSTMINOR);
@@ -865,7 +862,7 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 		/* why to reassign? */
 		tty_port_tty_set(&tp->port, tty);
 		tp->inattr = TF_INPUT;
-		return 0;
+		return tty_port_install(&tp->port, driver, tty);
 	}
 	if (tty3270_max_index < tty->index + 1)
 		tty3270_max_index = tty->index + 1;
@@ -895,7 +892,6 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 
 	tty_port_tty_set(&tp->port, tty);
 	tty->low_latency = 0;
-	tty->driver_data = tp;
 	tty->winsize.ws_row = tp->view.rows - 2;
 	tty->winsize.ws_col = tp->view.cols;
 
@@ -915,6 +911,15 @@ tty3270_open(struct tty_struct *tty, struct file * filp)
 	kbd_ascebc(tp->kbd, tp->view.ascebc);
 
 	raw3270_activate_view(&tp->view);
+
+	rc = tty_port_install(&tp->port, driver, tty);
+	if (rc) {
+		raw3270_put_view(&tp->view);
+		return rc;
+	}
+
+	tty->driver_data = tp;
+
 	return 0;
 }
 
@@ -932,10 +937,17 @@ tty3270_close(struct tty_struct *tty, struct file * filp)
 	if (tp) {
 		tty->driver_data = NULL;
 		tty_port_tty_set(&tp->port, NULL);
-		raw3270_put_view(&tp->view);
 	}
 }
 
+static void tty3270_cleanup(struct tty_struct *tty)
+{
+	struct tty3270 *tp = tty->driver_data;
+
+	if (tp)
+		raw3270_put_view(&tp->view);
+}
+
 /*
  * We always have room.
  */
@@ -1737,7 +1749,8 @@ static long tty3270_compat_ioctl(struct tty_struct *tty,
 #endif
 
 static const struct tty_operations tty3270_ops = {
-	.open = tty3270_open,
+	.install = tty3270_install,
+	.cleanup = tty3270_cleanup,
 	.close = tty3270_close,
 	.write = tty3270_write,
 	.put_char = tty3270_put_char,
@@ -1781,7 +1794,7 @@ static int __init tty3270_init(void)
 	driver->type = TTY_DRIVER_TYPE_SYSTEM;
 	driver->subtype = SYSTEM_TYPE_TTY;
 	driver->init_termios = tty_std_termios;
-	driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_DYNAMIC_DEV;
+	driver->flags = TTY_DRIVER_RESET_TERMIOS;
 	tty_set_operations(driver, &tty3270_ops);
 	ret = tty_register_driver(driver);
 	if (ret) {
@@ -1800,6 +1813,7 @@ tty3270_exit(void)
 	driver = tty3270_driver;
 	tty3270_driver = NULL;
 	tty_unregister_driver(driver);
+	put_tty_driver(driver);
 	tty3270_del_views();
 }