diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2007-04-16 22:53:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-17 16:36:27 -0700 |
| commit | 94256dd680f837dc14dd7d1377c5326fb3362721 (patch) | |
| tree | 5f64a661c86e8d0c7f656952beb6ae58d24bbcbe /drivers/macintosh | |
| parent | 07a0cfec30848319cc86f21cce0d2efeca593e1a (diff) | |
| download | lwn-94256dd680f837dc14dd7d1377c5326fb3362721.tar.gz lwn-94256dd680f837dc14dd7d1377c5326fb3362721.zip | |
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>
Diffstat (limited to 'drivers/macintosh')
| -rw-r--r-- | drivers/macintosh/smu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index 3096836d8bd3..c9f3dc4fd3ee 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -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); |