From: Julia Lawall <julia@diku.dk>
Date: Wed, 26 May 2010 05:55:10 +0000 (+0000)
Subject: drivers/isdn/hardware/mISDN: Add missing spin_unlock
X-Git-Tag: v2.6.35-rc2~64^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e72e9f3814cb8c1076d627c29cec90b005838ac3;p=pandora-kernel.git

drivers/isdn/hardware/mISDN: Add missing spin_unlock

Add a spin_unlock missing on the error path.  The return value of write_reg
seems to be completely ignored, so it seems that the lock should be
released in every case.

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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