1/// PTR_ERR should be applied before its argument is reassigned, typically
 2/// to NULL
 3///
 4// Confidence: High
 5// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.
 6// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2.
 7// URL: http://coccinelle.lip6.fr/
 8// Comments:
 9// Options: --no-includes --include-headers
10
11virtual org
12virtual report
13virtual context
14
15@r exists@
16expression e,e1;
17constant c;
18position p1,p2;
19@@
20
21*e@p1 = c
22... when != e = e1
23    when != &e
24    when != true IS_ERR(e)
25*PTR_ERR@p2(e)
26
27@script:python depends on org@
28p1 << r.p1;
29p2 << r.p2;
30@@
31
32cocci.print_main("PTR_ERR",p2)
33cocci.print_secs("assignment",p1)
34
35@script:python depends on report@
36p1 << r.p1;
37p2 << r.p2;
38@@
39
40msg = "ERROR: PTR_ERR applied after initialization to constant on line %s" % (p1[0].line)
41coccilib.report.print_report(p2[0],msg)

 1// SPDX-License-Identifier: GPL-2.0-only
 2/// PTR_ERR should be applied before its argument is reassigned, typically
 3/// to NULL
 4///
 5// Confidence: High
 6// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.
 7// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.
 8// URL: http://coccinelle.lip6.fr/
 9// Comments:
10// Options: --no-includes --include-headers
11
12virtual org
13virtual report
14virtual context
15
16@r exists@
17expression e,e1;
18constant c;
19position p1,p2;
20@@
21
22*e@p1 = c
23... when != e = e1
24    when != &e
25    when != true IS_ERR(e)
26*PTR_ERR@p2(e)
27
28@script:python depends on org@
29p1 << r.p1;
30p2 << r.p2;
31@@
32
33cocci.print_main("PTR_ERR",p2)
34cocci.print_secs("assignment",p1)
35
36@script:python depends on report@
37p1 << r.p1;
38p2 << r.p2;
39@@
40
41msg = "ERROR: PTR_ERR applied after initialization to constant on line %s" % (p1[0].line)
42coccilib.report.print_report(p2[0],msg)