Here, dev->irq is not assigned with irq. 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.cs@xxxxxxxxx>
---
changes in v2:
comedi_isadma_alloc() can fail. adding dev->irq assignment after
successful return of comedi_isadma_alloc().
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..217a4b8 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -1062,6 +1062,8 @@ static void dt282x_alloc_dma(struct comedi_device *dev,
PAGE_SIZE, 0);
if (!devpriv->dma)
free_irq(irq_num, dev);
+ else
+ dev->irq = irq_num;
}
static void dt282x_free_dma(struct comedi_device *dev)
--
2.7.4
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