drivers/atm/atmtcp.c: fix error return code

Convert a zero return value on error to a negative one, as returned
elsewhere in the function.

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>
Acked-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
index 0e3f8f9dcd294f5a79db29b6752808959f3e6719..480fa6ffbc090a48ae32496ef788c8e63d92e6be 100644 (file)
--- a/drivers/atm/atmtcp.c
+++ b/drivers/atm/atmtcp.c
@@ -299,6 +299,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
        out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci));
        read_unlock(&vcc_sklist_lock);
        if (!out_vcc) {
+               result = -EUNATCH;
                atomic_inc(&vcc->stats->tx_err);
                goto done;
        }