1/// The various basic memory allocation functions don't return ERR_PTR
 2///
 3// Confidence: High
 4// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
 5// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
 6// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 7// URL: http://coccinelle.lip6.fr/
 8// Comments:
 9// Options: --no-includes --include-headers
10
11virtual patch
12virtual context
13virtual org
14virtual report
15
16@depends on patch@
17expression x,E;
18@@
19
20x = \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...)
21... when != x = E
22- IS_ERR(x)
23+ !x
24
25@r depends on !patch exists@
26expression x,E;
27position p1,p2;
28@@
29
30*x = \(kmalloc@p1\|kzalloc@p1\|kcalloc@p1\|kmem_cache_alloc@p1\|kmem_cache_zalloc@p1\|kmem_cache_alloc_node@p1\|kmalloc_node@p1\|kzalloc_node@p1\)(...)
31... when != x = E
32* IS_ERR@p2(x)
33
34@script:python depends on org@
35p1 << r.p1;
36p2 << r.p2;
37@@
38
39cocci.print_main("alloc call",p1)
40cocci.print_secs("IS_ERR that should be NULL tests",p2)
41
42@script:python depends on report@
43p1 << r.p1;
44p2 << r.p2;
45@@
46
47msg = "ERROR: allocation function on line %s returns NULL not ERR_PTR on failure" % (p1[0].line)
48coccilib.report.print_report(p2[0], msg)

 1// SPDX-License-Identifier: GPL-2.0-only
 2/// The various basic memory allocation functions don't return ERR_PTR
 3///
 4// Confidence: High
 5// Copyright: (C) 2010-2012 Nicolas Palix.
 6// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
 7// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
 8// URL: https://coccinelle.gitlabpages.inria.fr/website
 9// Comments:
10// Options: --no-includes --include-headers
11
12virtual patch
13virtual context
14virtual org
15virtual report
16
17@depends on patch@
18expression x,E;
19@@
20
21x = \(kmalloc\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\)(...)
22... when != x = E
23- IS_ERR(x)
24+ !x
25
26@r depends on !patch exists@
27expression x,E;
28position p1,p2;
29@@
30
31*x = \(kmalloc@p1\|kzalloc@p1\|kcalloc@p1\|kmem_cache_alloc@p1\|kmem_cache_zalloc@p1\|kmem_cache_alloc_node@p1\|kmalloc_node@p1\|kzalloc_node@p1\)(...)
32... when != x = E
33* IS_ERR@p2(x)
34
35@script:python depends on org@
36p1 << r.p1;
37p2 << r.p2;
38@@
39
40cocci.print_main("alloc call",p1)
41cocci.print_secs("IS_ERR that should be NULL tests",p2)
42
43@script:python depends on report@
44p1 << r.p1;
45p2 << r.p2;
46@@
47
48msg = "ERROR: allocation function on line %s returns NULL not ERR_PTR on failure" % (p1[0].line)
49coccilib.report.print_report(p2[0], msg)