diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl816.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c index e0d91a18ec64..d2ce7751df93 100644 --- a/drivers/staging/comedi/drivers/pcl816.c +++ b/drivers/staging/comedi/drivers/pcl816.c @@ -147,6 +147,15 @@ static void pcl816_isadma_program(unsigned int dma_chan, release_dma_lock(flags); } +static void pcl816_isadma_disable(unsigned int dma_chan) +{ + unsigned long flags; + + flags = claim_dma_lock(); + disable_dma(dma_chan); + release_dma_lock(flags); +} + static void pcl816_start_pacer(struct comedi_device *dev, bool load_counters) { struct pcl816_private *devpriv = dev->private; @@ -202,7 +211,7 @@ static void pcl816_ai_setup_next_dma(struct comedi_device *dev, struct comedi_cmd *cmd = &s->async->cmd; struct pcl816_dma_desc *dma; - disable_dma(devpriv->dma); + pcl816_isadma_disable(devpriv->dma); if (devpriv->dma_runs_to_end > -1 || cmd->stop_src == TRIG_NONE) { /* switch dma bufs */ devpriv->cur_dma = 1 - devpriv->cur_dma; |