This function can only be called if the irq was sucessfully requested.
The dev->irq will always be valid.

Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das1800.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das1800.c 
b/drivers/staging/comedi/drivers/das1800.c
index c82de28..2f1b7cb 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -1150,12 +1150,6 @@ static int das1800_ai_do_cmd(struct comedi_device *dev,
        struct comedi_async *async = s->async;
        const struct comedi_cmd *cmd = &async->cmd;
 
-       if (!dev->irq) {
-               comedi_error(dev,
-                            "no irq assigned for das-1800, cannot do hardware 
conversions");
-               return -1;
-       }
-
        /* disable dma on TRIG_WAKE_EOS, or TRIG_RT
         * (because dma in handler is unsafe at hard real-time priority) */
        if (cmd->flags & (TRIG_WAKE_EOS | TRIG_RT))
-- 
1.8.4.4

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