diff options
| -rw-r--r-- | drivers/comedi/comedi_fops.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/comedi/comedi_fops.c b/drivers/comedi/comedi_fops.c index 2c3eb9e89571..67bd71efcfa8 100644 --- a/drivers/comedi/comedi_fops.c +++ b/drivers/comedi/comedi_fops.c @@ -793,13 +793,15 @@ static void do_become_nonbusy(struct comedi_device *dev, __comedi_clear_subdevice_runflags(s, COMEDI_SRF_RUNNING | COMEDI_SRF_BUSY); spin_unlock_irqrestore(&s->spin_lock, flags); - if (comedi_is_runflags_busy(runflags)) { + if (async) { /* * "Run active" counter was set to 1 when setting up the * command. Decrement it and wait for it to become 0. */ - comedi_put_is_subdevice_running(s); - wait_for_completion(&async->run_complete); + if (comedi_is_runflags_busy(runflags)) { + comedi_put_is_subdevice_running(s); + wait_for_completion(&async->run_complete); + } comedi_buf_reset(s); async->inttrig = NULL; kfree(async->cmd.chanlist); |