Here, dev->irq is not assigned with irq(irq_num). comedi_legacy_detach()
is using dev->irq for release irq and dt282x_attach() is using dev->irq
for initialize comedi_subdevice.
Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
drivers/staging/comedi/drivers/dt282x.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/comedi/drivers/dt282x.c
b/drivers/staging/comedi/drivers/dt282x.c
index d5295bb..afb7ac2 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -1057,6 +1057,8 @@ static void dt282x_alloc_dma(struct comedi_device *dev,
if (request_irq(irq_num, dt282x_interrupt, 0, dev->board_name, dev))
return;
+ dev->irq = irq_num;
+
/* DMA uses two 4K buffers with separate DMA channels */
devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan[0], dma_chan[1],
PAGE_SIZE, 0);
--
2.7.4
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