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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:11:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:11:04 -0700
commite6bee325e49f17c65c1fd66e9e8b348c85788341 (patch)
treebcc9e5d8e82efa9009edd481a837cc3626360091 /drivers/tty/tty_ioctl.c
parenta5e6b135bdff649e4330f98e2e80dbb1984f7e77 (diff)
parent6ae705b23be8da52d3163be9d81e9b767876aaf9 (diff)
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Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (76 commits) pch_uart: reference clock on CM-iTC pch_phub: add new device ML7213 n_gsm: fix UIH control byte : P bit should be 0 n_gsm: add a documentation serial: msm_serial_hs: Add MSM high speed UART driver tty_audit: fix tty_audit_add_data live lock on audit disabled tty: move cd1865.h to drivers/staging/tty/ Staging: tty: fix build with epca.c driver pcmcia: synclink_cs: fix prototype for mgslpc_ioctl() Staging: generic_serial: fix double locking bug nozomi: don't use flush_scheduled_work() tty/serial: Relax the device_type restriction from of_serial MAINTAINERS: Update HVC file patterns tty: phase out of ioctl file pointer for tty3270 as well tty: forgot to remove ipwireless from drivers/char/pcmcia/Makefile pch_uart: Fix DMA channel miss-setting issue. pch_uart: fix exclusive access issue pch_uart: fix auto flow control miss-setting issue pch_uart: fix uart clock setting issue pch_uart : Use dev_xxx not pr_xxx ... Fix up trivial conflicts in drivers/misc/pch_phub.c (same patch applied twice, then changes to the same area in one branch)
Diffstat (limited to 'drivers/tty/tty_ioctl.c')
-rw-r--r--drivers/tty/tty_ioctl.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 0c18899..1a1135d 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -486,7 +486,7 @@ int tty_termios_hw_change(struct ktermios *a, struct ktermios *b)
EXPORT_SYMBOL(tty_termios_hw_change);
/**
- * change_termios - update termios values
+ * tty_set_termios - update termios values
* @tty: tty to update
* @new_termios: desired new value
*
@@ -497,7 +497,7 @@ EXPORT_SYMBOL(tty_termios_hw_change);
* Locking: termios_mutex
*/
-static void change_termios(struct tty_struct *tty, struct ktermios *new_termios)
+int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios)
{
struct ktermios old_termios;
struct tty_ldisc *ld;
@@ -553,7 +553,9 @@ static void change_termios(struct tty_struct *tty, struct ktermios *new_termios)
tty_ldisc_deref(ld);
}
mutex_unlock(&tty->termios_mutex);
+ return 0;
}
+EXPORT_SYMBOL_GPL(tty_set_termios);
/**
* set_termios - set termios values for a tty
@@ -562,7 +564,7 @@ static void change_termios(struct tty_struct *tty, struct ktermios *new_termios)
* @opt: option information
*
* Helper function to prepare termios data and run necessary other
- * functions before using change_termios to do the actual changes.
+ * functions before using tty_set_termios to do the actual changes.
*
* Locking:
* Called functions take ldisc and termios_mutex locks
@@ -620,7 +622,7 @@ static int set_termios(struct tty_struct *tty, void __user *arg, int opt)
return -EINTR;
}
- change_termios(tty, &tmp_termios);
+ tty_set_termios(tty, &tmp_termios);
/* FIXME: Arguably if tmp_termios == tty->termios AND the
actual requested termios was not tmp_termios then we may
@@ -797,7 +799,7 @@ static int set_sgttyb(struct tty_struct *tty, struct sgttyb __user *sgttyb)
termios.c_ospeed);
#endif
mutex_unlock(&tty->termios_mutex);
- change_termios(tty, &termios);
+ tty_set_termios(tty, &termios);
return 0;
}
#endif
@@ -951,6 +953,8 @@ int tty_mode_ioctl(struct tty_struct *tty, struct file *file,
int ret = 0;
struct ktermios kterm;
+ BUG_ON(file == NULL);
+
if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
tty->driver->subtype == PTY_TYPE_MASTER)
real_tty = tty->link;