[PATCH 8/16] net/ax25: Use available error codes

From: Julia Lawall
Date: Mon Aug 16 2010 - 12:27:09 EST


From: Julia Lawall <julia@xxxxxxx>

Error codes are stored in err, but the return value is always 0. Return
err instead.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
local idexpression x;
constant C;
@@

if (...) { ...
x = -C
... when != x
(
return <+...x...+>;
|
return NULL;
|
return;
|
* return ...;
)
}
// </smpl>

Signed-off-by: Julia Lawall <julia@xxxxxxx>

---
This changes the semantics and has not been tested.

net/ax25/ax25_route.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index 7805945..a169084 100644
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -412,7 +412,7 @@ int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
{
ax25_uid_assoc *user;
ax25_route *ax25_rt;
- int err;
+ int err = 0;

if ((ax25_rt = ax25_get_route(addr, NULL)) == NULL)
return -EHOSTUNREACH;
@@ -453,7 +453,7 @@ int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
put:
ax25_put_route(ax25_rt);

- return 0;
+ return err;
}

struct sk_buff *ax25_rt_build_path(struct sk_buff *skb, ax25_address *src,
--
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