diff mbox

[9/17] net/iucv: Add missing spin_unlock

Message ID Pine.LNX.4.64.1005261756330.23743@ask.diku.dk
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Julia Lawall May 26, 2010, 3:56 p.m. UTC 
From: Julia Lawall <julia@diku.dk>

Add a spin_unlock missing on the error path.  There seems like no reason
why the lock should continue to be held if the kzalloc fail.

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

// <smpl>
@@
expression E1;
@@

* spin_lock(E1,...);
  <+... when != E1
  if (...) {
    ... when != E1
*   return ...;
  }
  ...+>
* spin_unlock(E1,...);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 net/iucv/af_iucv.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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Comments

David Miller May 27, 2010, 4:10 a.m. UTC | #1 
From: Julia Lawall <julia@diku.dk>
Date: Wed, 26 May 2010 17:56:48 +0200 (CEST)

> Add a spin_unlock missing on the error path.  There seems like no reason
> why the lock should continue to be held if the kzalloc fail.

Applied, thanks.
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diff mbox

Patch

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index c8b4599..9637e45 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1619,7 +1619,7 @@  static void iucv_callback_rx(struct iucv_path *path, struct iucv_message *msg)
 save_message:
 	save_msg = kzalloc(sizeof(struct sock_msg_q), GFP_ATOMIC | GFP_DMA);
 	if (!save_msg)
-		return;
+		goto out_unlock;
 	save_msg->path = path;
 	save_msg->msg = *msg;