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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>
This commit is contained in:
Julia Lawall 2008-12-26 08:27:24 +01:00 committed by Paul Mundt
parent f3b8436ad9
commit 7bfa122c19
1 changed files with 1 additions and 1 deletions
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2
arch/sh/mm/ioremap_64.c
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@ -71,9 +71,9 @@ void *__ioremap(unsigned long phys_addr, unsigned long size,
* Ok, go for it..
*/
area = get_vm_area(size, VM_IOREMAP);
pr_debug("Get vm_area returns %p addr %p\n",area,area->addr);
if (!area)
return NULL;
pr_debug("Get vm_area returns %p addr %p\n", area, area->addr);
area->phys_addr = phys_addr;
addr = area->addr;
if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,