aboutsummaryrefslogtreecommitdiffstats
path: root/scripts/coccinelle/api/ptr_ret.cocci
blob: cbfd08c7d8c734152f5bcadfff38298bc9ceb828 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
///
/// Use PTR_RET rather than if(IS_ERR(...)) + PTR_ERR
///
// Confidence: High
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2.
// URL: http://coccinelle.lip6.fr/
// Options: -no_includes -include_headers
//
// Keywords: ERR_PTR, PTR_ERR, PTR_RET
// Version min: 2.6.39
//

virtual context
virtual patch
virtual org
virtual report

@depends on patch@
expression ptr;
@@

- if (IS_ERR(ptr)) return PTR_ERR(ptr); else return 0;
+ return PTR_RET(ptr);

@depends on patch@
expression ptr;
@@

- if (IS_ERR(ptr)) return PTR_ERR(ptr); return 0;
+ return PTR_RET(ptr);

@r1 depends on !patch@
expression ptr;
position p1;
@@

* if@p1 (IS_ERR(ptr)) return PTR_ERR(ptr); else return 0;

@r2 depends on !patch@
expression ptr;
position p2;
@@

* if@p2 (IS_ERR(ptr)) return PTR_ERR(ptr); return 0;

@script:python depends on org@
p << r1.p1;
@@

coccilib.org.print_todo(p[0], "WARNING: PTR_RET can be used")


@script:python depends on org@
p << r2.p2;
@@

coccilib.org.print_todo(p[0], "WARNING: PTR_RET can be used")

@script:python depends on report@
p << r1.p1;
@@

coccilib.report.print_report(p[0], "WARNING: PTR_RET can be used")

@script:python depends on report@
p << r2.p2;
@@

coccilib.report.print_report(p[0], "WARNING: PTR_RET can be used")