////// Use kzalloc rather than kmalloc followed by memset with 0////// This considers some simple cases that are common and easy to validate/// Note in particular that there are no ...s in the rule, so all of the/// matched code has to be contiguous///// Confidence: High// Copyright: (C) 2009-2010 Julia Lawall, Nicolas Palix, DIKU.  GPLv2.// Copyright: (C) 2009-2010 Gilles Muller, INRIA/LiP6.  GPLv2.// URL: http://coccinelle.lip6.fr/rules/kzalloc.html// Options: --no-includes --include-headers//// Keywords: kmalloc, kzalloc// Version min: < 2.6.12 kmalloc// Version min:   2.6.14 kzalloc// virtual contextvirtual patchvirtual orgvirtual report //----------------------------------------------------------//  For context mode//---------------------------------------------------------- @depends on context@type T, T2;expression x;expression E1,E2;statement S;@@ * x = (T)kmalloc(E1,E2);  if ((x==NULL) || ...) S* memset((T2)x,0,E1); //----------------------------------------------------------//  For patch mode//---------------------------------------------------------- @depends on patch@type T, T2;expression x;expression E1,E2;statement S;@@ - x = (T)kmalloc(E1,E2);+ x = kzalloc(E1,E2);  if ((x==NULL) || ...) S- memset((T2)x,0,E1); //----------------------------------------------------------//  For org mode//---------------------------------------------------------- @r depends on org || report@type T, T2;expression x;expression E1,E2;statement S;position p;@@  x = (T)kmalloc@p(E1,E2); if ((x==NULL) || ...) S memset((T2)x,0,E1); @script:python depends on org@p << r.p;x << r.x;@@ msg="%s" % (x)msg_safe=msg.replace("[","@(").replace("]",")")coccilib.org.print_todo(p[0], msg_safe) @script:python depends on report@p << r.p;x << r.x;@@ msg="WARNING: kzalloc should be used for %s, instead of kmalloc/memset" % (x)coccilib.report.print_report(p[0], msg)