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cosa: fix error return code

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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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julia Lawall 2015-04-05 14:06:28 +02:00 committed by David S. Miller
parent 27d751bfa4
commit a3786a5ff7
1 changed files with 1 additions and 0 deletions
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1
drivers/net/wan/cosa.c
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@ -579,6 +579,7 @@ static int cosa_probe(int base, int irq, int dma)
/* Register the network interface */
if (!(chan->netdev = alloc_hdlcdev(chan))) {
pr_warn("%s: alloc_hdlcdev failed\n", chan->name);
err = -ENOMEM;
goto err_hdlcdev;
}
dev_to_hdlc(chan->netdev)->attach = cosa_net_attach;