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NAME	SIZE	ACTIONS
📄 array_size.cocci	1,696 B	[ EDIT ] \| [ DEL ]
📄 badty.cocci	1,722 B	[ EDIT ] \| [ DEL ]
📄 boolconv.cocci	1,472 B	[ EDIT ] \| [ DEL ]
📄 boolinit.cocci	2,249 B	[ EDIT ] \| [ DEL ]
📄 boolreturn.cocci	698 B	[ EDIT ] \| [ DEL ]
📄 bugon.cocci	1,482 B	[ EDIT ] \| [ DEL ]
📄 cond_no_effect.cocci	2,088 B	[ EDIT ] \| [ DEL ]
📄 cstptr.cocci	827 B	[ EDIT ] \| [ DEL ]
📄 doubleinit.cocci	1,391 B	[ EDIT ] \| [ DEL ]
📄 ifaddr.cocci	659 B	[ EDIT ] \| [ DEL ]
📄 ifcol.cocci	1,241 B	[ EDIT ] \| [ DEL ]
📄 irqf_oneshot.cocci	1,951 B	[ EDIT ] \| [ DEL ]
📄 newline_in_nl_msg.cocci	1,650 B	[ EDIT ] \| [ DEL ]
📄 noderef.cocci	1,194 B	[ EDIT ] \| [ DEL ]
📄 of_table.cocci	1,366 B	[ EDIT ] \| [ DEL ]
📄 orplus.cocci	1,028 B	[ EDIT ] \| [ DEL ]
📄 returnvar.cocci	1,253 B	[ EDIT ] \| [ DEL ]
📄 semicolon.cocci	1,062 B	[ EDIT ] \| [ DEL ]
📄 warn.cocci	1,661 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: badty.cocci

/// Use ARRAY_SIZE instead of dividing sizeof array with sizeof an element
///
//# This makes an effort to find cases where the argument to sizeof is wrong
//# in memory allocation functions by checking the type of the allocated memory
//# when it is a double pointer and ensuring the sizeof argument takes a pointer
//# to the the memory being allocated. There are false positives in cases the
//# sizeof argument is not used in constructing the return value. The result
//# may need some reformatting.
//
// Confidence: Moderate
// Copyright: (C) 2014 Himangi Saraogi.  GPLv2.
// Comments:
// Options:

virtual patch
virtual context
virtual org
virtual report

//----------------------------------------------------------
//  For context mode
//----------------------------------------------------------

@depends on context disable sizeof_type_expr@
type T;
T **x;
@@

x =
  <+...sizeof(
* T
  )...+>

//----------------------------------------------------------
//  For patch mode
//----------------------------------------------------------

@depends on patch disable sizeof_type_expr@
type T;
T **x;
@@

x =
  <+...sizeof(
- T
+ *x
  )...+>

//----------------------------------------------------------
//  For org and report mode
//----------------------------------------------------------

@r depends on (org || report) disable sizeof_type_expr@
type T;
T **x;
position p;
@@

x =
  <+...sizeof(
  T@p
  )...+>

@script:python depends on org@
p << r.p;
@@

coccilib.org.print_todo(p[0], "WARNING sizeof argument should be pointer type, not structure type")

@script:python depends on report@
p << r.p;
@@

msg="WARNING: Use correct pointer type argument for sizeof"
coccilib.report.print_report(p[0], msg)