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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 12:26:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 12:26:52 -0700
commit3498d13b8090c0b0ef911409fbc503a7c4cca6ef (patch)
tree254ca00276e863d9fba25707690c66b2a04c49e9 /drivers/s390
parentdef7cb8cd4e3258db88050eaaca5438bcc3dafca (diff)
parent0c57dfcc6c1d037243c2f8fbf62eab3633326ec0 (diff)
Merge tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY changes from Greg Kroah-Hartman: "As we skipped the merge window for 3.6-rc1 for the tty tree, everything is now settled down and working properly, so we are ready for 3.7-rc1. Here's the patchset, it's big, but the large changes are removing a firmware file and adding a staging tty driver (it depended on the tty core changes, so it's going through this tree instead of the staging tree.) All of these patches have been in the linux-next tree for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up more-or-less trivial conflicts in - drivers/char/pcmcia/synclink_cs.c: tty NULL dereference fix vs tty_port_cts_enabled() helper function - drivers/staging/{Kconfig,Makefile}: add-add conflict (dgrp driver added close to other staging drivers) - drivers/staging/ipack/devices/ipoctal.c: "split ipoctal_channel from iopctal" vs "TTY: use tty_port_register_device" * tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (235 commits) tty/serial: Add kgdb_nmi driver tty/serial/amba-pl011: Quiesce interrupts in poll_get_char tty/serial/amba-pl011: Implement poll_init callback tty/serial/core: Introduce poll_init callback kdb: Turn KGDB_KDB=n stubs into static inlines kdb: Implement disable_nmi command kernel/debug: Mask KGDB NMI upon entry serial: pl011: handle corruption at high clock speeds serial: sccnxp: Make 'default' choice in switch last serial: sccnxp: Remove mask termios caps for SW flow control serial: sccnxp: Report actual baudrate back to core serial: samsung: Add poll_get_char & poll_put_char Powerpc 8xx CPM_UART setting MAXIDL register proportionaly to baud rate Powerpc 8xx CPM_UART maxidl should not depend on fifo size Powerpc 8xx CPM_UART too many interrupts Powerpc 8xx CPM_UART desynchronisation serial: set correct baud_base for EXSYS EX-41092 Dual 16950 serial: omap: fix the reciever line error case 8250: blacklist Winbond CIR port 8250_pnp: do pnp probe before legacy probe ...
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/con3215.c28
-rw-r--r--drivers/s390/char/sclp_tty.c1
-rw-r--r--drivers/s390/char/sclp_vt220.c1
-rw-r--r--drivers/s390/char/tty3270.c34
4 files changed, 48 insertions, 16 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 6c0116d48c74..9ffb6d5f17aa 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -716,10 +716,17 @@ static int raw3215_probe (struct ccw_device *cdev)
static void raw3215_remove (struct ccw_device *cdev)
{
struct raw3215_info *raw;
+ unsigned int line;
ccw_device_set_offline(cdev);
raw = dev_get_drvdata(&cdev->dev);
if (raw) {
+ spin_lock(&raw3215_device_lock);
+ for (line = 0; line < NR_3215; line++)
+ if (raw3215[line] == raw)
+ break;
+ raw3215[line] = NULL;
+ spin_unlock(&raw3215_device_lock);
dev_set_drvdata(&cdev->dev, NULL);
raw3215_free_info(raw);
}
@@ -935,6 +942,19 @@ static int __init con3215_init(void)
console_initcall(con3215_init);
#endif
+static int tty3215_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+ struct raw3215_info *raw;
+
+ raw = raw3215[tty->index];
+ if (raw == NULL)
+ return -ENODEV;
+
+ tty->driver_data = raw;
+
+ return tty_port_install(&raw->port, driver, tty);
+}
+
/*
* tty3215_open
*
@@ -942,14 +962,9 @@ console_initcall(con3215_init);
*/
static int tty3215_open(struct tty_struct *tty, struct file * filp)
{
- struct raw3215_info *raw;
+ struct raw3215_info *raw = tty->driver_data;
int retval;
- raw = raw3215[tty->index];
- if (raw == NULL)
- return -ENODEV;
-
- tty->driver_data = raw;
tty_port_tty_set(&raw->port, tty);
tty->low_latency = 0; /* don't use bottom half for pushing chars */
@@ -1110,6 +1125,7 @@ static void tty3215_start(struct tty_struct *tty)
}
static const struct tty_operations tty3215_ops = {
+ .install = tty3215_install,
.open = tty3215_open,
.close = tty3215_close,
.write = tty3215_write,
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 0792c85baafe..30ec09e3d037 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -567,6 +567,7 @@ sclp_tty_init(void)
driver->init_termios.c_lflag = ISIG | ECHO;
driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(driver, &sclp_ops);
+ tty_port_link_device(&sclp_port, driver, 0);
rc = tty_register_driver(driver);
if (rc) {
put_tty_driver(driver);
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index edfc0fd73dc6..7e60f3d2f3f9 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -691,6 +691,7 @@ static int __init sclp_vt220_tty_init(void)
driver->init_termios = tty_std_termios;
driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(driver, &sclp_vt220_ops);
+ tty_port_link_device(&sclp_vt220_port, driver, 0);
rc = tty_register_driver(driver);
if (rc)
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 1928f3458d10..482ee028f842 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();
}