scripts/coccinelle: check for field address argument to kfree

/// Free of a structure field

///

// Confidence: High

// Copyright: (C) 2013 Julia Lawall, INRIA/LIP6.  GPLv2.

// URL: http://coccinelle.lip6.fr/

// Comments:

// Options: -no_includes -include_headers

virtual org

virtual report

virtual context

@r depends on context || report || org @

expression e;

identifier f;

position p;

@@

* kfree@p(&e->f)

@script:python depends on org@

p << r.p;

@@

cocci.print_main("kfree",p)

@script:python depends on report@

p << r.p;

@@

msg = "ERROR: kfree of structure field"

coccilib.report.print_report(p[0],msg)