From: Julia Lawall <julia@diku.dk>
Date: Fri, 26 Dec 2008 07:27:24 +0000 (+0100)
Subject: arch/sh/mm: Move a dereference below a NULL test
X-Git-Tag: v2.6.29-rc3~35^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7bfa122c19e47b1dee47476ce6e9ed6ba16f8269;p=pandora-kernel.git

arch/sh/mm: Move a dereference below a NULL test

If the NULL test is necessary, then the dereference should be moved below
the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/).

// <smpl>
@disable is_null@
identifier f;
expression E;
identifier fld;
statement S;
@@

+ if (E == NULL) S
  f(...,E->fld,...);
- if (E == NULL) S

@@
identifier f;
expression E;
identifier fld;
statement S;
@@

+ if (!E) S
  f(...,E->fld,...);
- if (!E) S
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

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