diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 0cfca33965f6..f9e4f72e3769 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -1088,9 +1088,9 @@ static int das1800_ai_do_cmd(struct comedi_device *dev,
 	struct comedi_async *async = s->async;
 	const struct comedi_cmd *cmd = &async->cmd;
 
-	/* disable dma on TRIG_WAKE_EOS, or TRIG_RT
+	/* disable dma on TRIG_WAKE_EOS, or CMDF_PRIORITY
 	 * (because dma in handler is unsafe at hard real-time priority) */
-	if (cmd->flags & (TRIG_WAKE_EOS | TRIG_RT))
+	if (cmd->flags & (TRIG_WAKE_EOS | CMDF_PRIORITY))
 		devpriv->irq_dma_bits &= ~DMA_ENABLED;
 	else
 		devpriv->irq_dma_bits |= devpriv->dma_bits;