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authorLinus Torvalds <torvalds@linux-foundation.org>2012-06-02 15:21:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-06-02 15:21:43 -0700
commitf309532bf3e1cc1b787403d84e3039812a7dbe50 (patch)
tree6508ac81e94bfc137d1d9a55b973a2e0e0ac007b /drivers/tty/synclink.c
parent233e562eac549f4f719176bbddeb50c3f17a9c8d (diff)
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.c4
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);

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