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: https://coccinelle.gitlabpages.inria.fr/website
7 // Keywords: pci_free_consistent, pci_alloc_consistent
8 // Options: --no-includes --include-headers
9
10 virtual report
11 virtual org
12
13 @search@
14 local idexpression id;
15 expression x,y,z,e;
16 position p1,p2;
17 type T;
18 @@
19
20 id = pci_alloc_consistent@p1(x,y,&z)
21 ... when != e = id
22 if (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 (
29 return 0;
30 |
31 return 1;
32 |
33 return id;
34 |
35 return@p2 ...;
36 )
37
38 @script:python depends on report@
39 p1 << search.p1;
40 p2 << search.p2;
41 @@
42
43 msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line)
44 coccilib.report.print_report(p2[0],msg)
45
46 @script:python depends on org@
47 p1 << search.p1;
48 p2 << search.p2;
49 @@
50
51 msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line)
52 cocci.print_main(msg,p1)
53 cocci.print_secs("",p2)
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