Check for NULL return for malloc
Check for NULL return for malloc

diogomg/olsrd,sebkur/olsrd,zioproto/olsrd-gsoc2012,diogomg/olsrd,tdz/olsrd,sauloqueiroz/incremental-spf,tdz/olsrd,sebkur/olsrd,servalproject/olsr,nolith/olsrd,acinonyx/olsrd,brabander/olsr,cholin/olsrd,servalproject/olsr,ninuxorg/olsrd,sebkur/olsrd,sebkur/olsrd,zioproto/olsrd,diogomg/olsrd-binary-heap,ralisi/olsrd_cl_roam,brabander/olsr,nolith/olsrd,duydb2/olsr,zioproto/olsrd-gsoc2012,duydb2/olsr,acinonyx/olsrd,tdz/olsrd,ralisi/olsrd_cl_roam,diogomg/olsrd-binary-heap,diogomg/olsrd,cl4u2/olsrd-wot-pgp,brabander/olsr,cholin/olsrd,sauloqueiroz/incremental-spf,diogomg/olsrd,zioproto/olsrd,zioproto/olsrd-gsoc2012,ninuxorg/olsrd,duydb2/olsr,nolith/olsrd,diogomg/olsrd-binary-heap,ralisi/olsrd_cl_roam,acinonyx/olsrd,cl4u2/olsrd-wot-pgp,diogomg/olsrd,duydb2/olsr,servalproject/olsr,diogomg/olsrd,sauloqueiroz/incremental-spf,ninuxorg/olsrd,diogomg/olsrd-binary-heap,cl4u2/olsrd-wot-pgp,tdz/olsrd,cholin/olsrd,sebkur/olsrd,tdz/olsrd,duydb2/olsr,duydb2/olsr,zioproto/olsrd,duydb2/olsr,duydb2/olsr,sebkur/olsrd,servalproject/olsr,servalproject/olsr,nolith/olsrd,zioproto/olsrd,cl4u2/olsrd-wot-pgp,diogomg/olsrd,sauloqueiroz/incremental-spf,cl4u2/olsrd-wot-pgp,zioproto/olsrd-gsoc2012,cholin/olsrd,acinonyx/olsrd,nolith/olsrd,ninuxorg/olsrd,zioproto/olsrd-gsoc2012,ninuxorg/olsrd,zioproto/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd-gsoc2012,acinonyx/olsrd,diogomg/olsrd-binary-heap,servalproject/olsr,cholin/olsrd,brabander/olsr,ralisi/olsrd_cl_roam,diogomg/olsrd-binary-heap