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tty: Remove more special casing and out of place code

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Carry on pushing code out of tty_io when it belongs to other drivers. I'm
not 100% happy with some of this and it will be worth revisiting some of the
exports later when the restructuring work is done.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox
2008-10-13 10:41:42 +01:00
committed by Linus Torvalds
parent feebed6515
commit d81ed10307
6 changed files with 195 additions and 156 deletions
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drivers/char/vt.c
+14 -16
View File
@@ -100,10 +100,10 @@
#include <linux/font.h>
#include <linux/bitops.h>
#include <linux/notifier.h>
#include <asm/io.h>
#include <linux/device.h>
#include <linux/io.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
#define MAX_NR_CON_DRIVER 16
@@ -2352,8 +2352,6 @@ rescan_last_byte:
FLUSH
console_conditional_schedule();
release_console_sem();
out:
notify_update(vc);
return n;
#undef FLUSH
@@ -2784,13 +2782,6 @@ static int con_open(struct tty_struct *tty, struct file *filp)
return ret;
}
/*
* We take tty_mutex in here to prevent another thread from coming in via init_dev
* and taking a ref against the tty while we're in the process of forgetting
* about it and cleaning things up.
*
* This is because vcs_remove_sysfs() can sleep and will drop the BKL.
*/
static void con_close(struct tty_struct *tty, struct file *filp)
{
/* Nothing to do - we defer to shutdown */
@@ -2932,8 +2923,16 @@ static const struct tty_operations con_ops = {
.shutdown = con_shutdown
};
int __init vty_init(void)
static struct cdev vc0_cdev;
int __init vty_init(const struct file_operations *console_fops)
{
cdev_init(&vc0_cdev, console_fops);
if (cdev_add(&vc0_cdev, MKDEV(TTY_MAJOR, 0), 1) ||
register_chrdev_region(MKDEV(TTY_MAJOR, 0), 1, "/dev/vc/0") < 0)
panic("Couldn't register /dev/tty0 driver\n");
device_create(tty_class, NULL, MKDEV(TTY_MAJOR, 0), NULL, "tty0");
vcs_init();
console_driver = alloc_tty_driver(MAX_NR_CONSOLES);
@@ -2952,7 +2951,6 @@ int __init vty_init(void)
tty_set_operations(console_driver, &con_ops);
if (tty_register_driver(console_driver))
panic("Couldn't register console driver\n");
kbd_init();
console_map_init();
#ifdef CONFIG_PROM_CONSOLE
@@ -3446,7 +3444,7 @@ int register_con_driver(const struct consw *csw, int first, int last)
if (retval)
goto err;
con_driver->dev = device_create_drvdata(vtconsole_class, NULL,
con_driver->dev = device_create(vtconsole_class, NULL,
MKDEV(0, con_driver->node),
NULL, "vtcon%i",
con_driver->node);
@@ -3557,7 +3555,7 @@ static int __init vtconsole_class_init(void)
struct con_driver *con = &registered_con_driver[i];
if (con->con && !con->dev) {
con->dev = device_create_drvdata(vtconsole_class, NULL,
con->dev = device_create(vtconsole_class, NULL,
MKDEV(0, con->node),
NULL, "vtcon%i",
con->node);