tree 621be172dfa44ee49052b97ae8913ac41e62d317
parent 13a032295710b49d331bb53086a7de4557243851
author Julia Lawall <julia@diku.dk> 1258913476 -0800
committer Tony Lindgren <tony@atomide.com> 1258914272 -0800

arch/arm/plat-omap: Drop an unnecessary NULL test

map_iovm_area is only called from a context where its second argument is
known not to be NULL, so drop the unnecessary test.  If new could be NULL,
the initialization of da should be moved below the test.

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

// <smpl>
@match exists@
expression x, E;
identifier fld;
@@

* x->fld
  ... when != \(x = E\|&x\)
* x == NULL
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>