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authorLinus Torvalds <torvalds@linux-foundation.org>2013-06-22 09:00:28 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2013-06-22 09:00:28 -1000
commitdcfdc28f300380ad31033aa0bfb8cf80f23c453a (patch)
tree14fdc07ba17f7bb920057c785cf77c06d1039ca4 /drivers
parent67e5b2fad4e9848a954fd97de0509ec5cb6e6d47 (diff)
parent7c61c3d8f44d5d822f758754287af644307b4af9 (diff)
downloadvexpress-lsk-dcfdc28f300380ad31033aa0bfb8cf80f23c453a.tar.gz
Merge tag 'tty-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pul tty fixes from Greg Kroah-Hartman: "Here are two tty core fixes that resolve some regressions that have been reported recently. Both tiny fixes, but needed" * tag 'tty-3.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: Fix transient pty write() EIO tty/vt: Return EBUSY if deallocating VT1 and it is busy
Diffstat (limited to 'drivers')
-rw-r--r--drivers/tty/pty.c13
-rw-r--r--drivers/tty/vt/vt_ioctl.c5
2 files changed, 6 insertions, 12 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 59bfaecc4e1..abfd9908978 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -244,14 +244,9 @@ static void pty_flush_buffer(struct tty_struct *tty)
static int pty_open(struct tty_struct *tty, struct file *filp)
{
- int retval = -ENODEV;
-
if (!tty || !tty->link)
- goto out;
-
- set_bit(TTY_IO_ERROR, &tty->flags);
+ return -ENODEV;
- retval = -EIO;
if (test_bit(TTY_OTHER_CLOSED, &tty->flags))
goto out;
if (test_bit(TTY_PTY_LOCK, &tty->link->flags))
@@ -262,9 +257,11 @@ static int pty_open(struct tty_struct *tty, struct file *filp)
clear_bit(TTY_IO_ERROR, &tty->flags);
clear_bit(TTY_OTHER_CLOSED, &tty->link->flags);
set_bit(TTY_THROTTLED, &tty->flags);
- retval = 0;
+ return 0;
+
out:
- return retval;
+ set_bit(TTY_IO_ERROR, &tty->flags);
+ return -EIO;
}
static void pty_set_termios(struct tty_struct *tty,
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index fc2c06c66e8..2bd78e2ac8e 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -289,13 +289,10 @@ static int vt_disallocate(unsigned int vc_num)
struct vc_data *vc = NULL;
int ret = 0;
- if (!vc_num)
- return 0;
-
console_lock();
if (VT_BUSY(vc_num))
ret = -EBUSY;
- else
+ else if (vc_num)
vc = vc_deallocate(vc_num);
console_unlock();