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drivers/macintosh/smu.c: fix locking snafu 

It got its lock and unlock backwards.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=8334

(obviously, this code could be using plain old spin_lock_irq(), too)

Cc: <matthias.kaehlcke@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton 2007-04-16 22:53:25 -07:00 committed by Linus Torvalds
parent 07a0cfec30
commit 94256dd680
1 changed files with 2 additions and 2 deletions
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4
drivers/macintosh/smu.c
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@ -1259,9 +1259,9 @@ static int smu_release(struct inode *inode, struct file *file)
set_current_state(TASK_UNINTERRUPTIBLE);
if (pp->cmd.status != 1)
break;
spin_lock_irqsave(&pp->lock, flags);
schedule();
spin_unlock_irqrestore(&pp->lock, flags);
schedule();
spin_lock_irqsave(&pp->lock, flags);
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&pp->wait, &wait);