On 16/11/17 04:32, Arvind Yadav wrote:
pnp_irq() and pnp_port_start() can fail here and we must check
its return value.

Signed-off-by: Arvind Yadav <arvind.yadav...@gmail.com>
---
  drivers/staging/comedi/drivers/ni_atmio.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/drivers/staging/comedi/drivers/ni_atmio.c 
b/drivers/staging/comedi/drivers/ni_atmio.c
index 2d62a8c..dead159 100644
--- a/drivers/staging/comedi/drivers/ni_atmio.c
+++ b/drivers/staging/comedi/drivers/ni_atmio.c
@@ -308,6 +308,9 @@ static int ni_atmio_attach(struct comedi_device *dev,
iobase = pnp_port_start(isapnp_dev, 0);
                irq = pnp_irq(isapnp_dev, 0);
+               if (irq == -1 || !iobase)
+                       return -ENOMEM;
+
                comedi_set_hw_dev(dev, &isapnp_dev->dev);
        }

Can they fail here? ni_isapnp_find_board() has already checked they are valid.

--
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbo...@mev.co.uk> )=-
-=(                          Web: http://www.mev.co.uk/  )=-

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