1// SPDX-License-Identifier: GPL-2.0-only
2/// Find missing pci_free_consistent for every pci_alloc_consistent.
3///
4// Confidence: Moderate
5// Copyright: (C) 2013 Petr Strnad.
6// URL: http://coccinelle.lip6.fr/
7// Keywords: pci_free_consistent, pci_alloc_consistent
8// Options: --no-includes --include-headers
9
10virtual report
11virtual org
12
13@search@
14local idexpression id;
15expression x,y,z,e;
16position p1,p2;
17type T;
18@@
19
20id = pci_alloc_consistent@p1(x,y,&z)
21... when != e = id
22if (id == NULL || ...) { ... return ...; }
23... when != pci_free_consistent(x,y,id,z)
24    when != if (id) { ... pci_free_consistent(x,y,id,z) ... }
25    when != if (y) { ... pci_free_consistent(x,y,id,z) ... }
26    when != e = (T)id
27    when exists
28(
29return 0;
30|
31return 1;
32|
33return id;
34|
35return@p2 ...;
36)
37
38@script:python depends on report@
39p1 << search.p1;
40p2 << search.p2;
41@@
42
43msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line)
44coccilib.report.print_report(p2[0],msg)
45
46@script:python depends on org@
47p1 << search.p1;
48p2 << search.p2;
49@@
50
51msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line)
52cocci.print_main(msg,p1)
53cocci.print_secs("",p2)
54