From: Julia Lawall <julia@diku.dk>
Date: Fri, 9 Apr 2010 11:42:58 +0000 (+0200)
Subject: [S390] arch/s390/kernel: Add missing unlock
X-Git-Tag: v2.6.34-rc4~10^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7015c120e0ac55d86cabbe7a14997b99f39e282;p=pandora-kernel.git

[S390] arch/s390/kernel: Add missing unlock

In the default case the lock is not unlocked.  The return is
converted to a goto, to share the unlock at the end of the function.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E1;
identifier f;
@@

f (...) { <+...
* spin_lock_irq (E1,...);
... when != E1
* return ...;
...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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