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Subject[PATCH 4/7] serial: icom: fix error return code
Date
From: Julia Lawall <Julia.Lawall@lip6.fr>

Return a negative error code on failure.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
The patches in this series are independent of each other.

drivers/tty/serial/icom.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index d4620fe..45fc323 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -1550,8 +1550,10 @@ static int icom_probe(struct pci_dev *dev,

icom_adapter->base_addr = pci_ioremap_bar(dev, 0);

- if (!icom_adapter->base_addr)
+ if (!icom_adapter->base_addr) {
+ retval = -ENOMEM;
goto probe_exit1;
+ }

/* save off irq and request irq line */
if ( (retval = request_irq(dev->irq, icom_interrupt,


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