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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-06-02 15:21:43 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-06-02 15:21:43 -0700 |
| commit | f309532bf3e1cc1b787403d84e3039812a7dbe50 (patch) | |
| tree | 6508ac81e94bfc137d1d9a55b973a2e0e0ac007b /drivers/tty/synclink.c | |
| parent | 233e562eac549f4f719176bbddeb50c3f17a9c8d (diff) | |
| download | linux-f309532bf3e1cc1b787403d84e3039812a7dbe50.tar.gz linux-f309532bf3e1cc1b787403d84e3039812a7dbe50.tar.bz2 linux-f309532bf3e1cc1b787403d84e3039812a7dbe50.zip | |
tty: Revert the tty locking series, it needs more work
This reverts the tty layer change to use per-tty locking, because it's
not correct yet, and fixing it will require some more deep surgery.
The main revert is d29f3ef39be4 ("tty_lock: Localise the lock"), but
there are several smaller commits that built upon it, they also get
reverted here. The list of reverted commits is:
fde86d310886 - tty: add lockdep annotations
8f6576ad476b - tty: fix ldisc lock inversion trace
d3ca8b64b97e - pty: Fix lock inversion
b1d679afd766 - tty: drop the pty lock during hangup
abcefe5fc357 - tty/amiserial: Add missing argument for tty_unlock()
fd11b42e3598 - cris: fix missing tty arg in wait_event_interruptible_tty call
d29f3ef39be4 - tty_lock: Localise the lock
The revert had a trivial conflict in the 68360serial.c staging driver
that got removed in the meantime.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/tty/synclink.c')
| -rw-r--r-- | drivers/tty/synclink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c index 5ed0daae6564..593d40ad0a6b 100644 --- a/drivers/tty/synclink.c +++ b/drivers/tty/synclink.c @@ -3338,9 +3338,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp, printk("%s(%d):block_til_ready blocking on %s count=%d\n", __FILE__,__LINE__, tty->driver->name, port->count ); - tty_unlock(tty); + tty_unlock(); schedule(); - tty_lock(tty); + tty_lock(); } set_current_state(TASK_RUNNING); |