diff options
Diffstat (limited to 'drivers/macintosh/smu.c')
| -rw-r--r-- | drivers/macintosh/smu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index ef1f3330a10e..2506c957712e 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -1186,8 +1186,10 @@ static ssize_t smu_read_command(struct file *file, struct smu_private *pp, return -EOVERFLOW; spin_lock_irqsave(&pp->lock, flags); if (pp->cmd.status == 1) { - if (file->f_flags & O_NONBLOCK) + if (file->f_flags & O_NONBLOCK) { + spin_unlock_irqrestore(&pp->lock, flags); return -EAGAIN; + } add_wait_queue(&pp->wait, &wait); for (;;) { set_current_state(TASK_INTERRUPTIBLE); |