Commit 7bfa122c authored Dec 26, 2008 by Julia Lawall Committed by Paul Mundt Jan 21, 2009

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>

parent f3b8436a

arch/sh/mm/ioremap_64.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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,