blob: d67ccf5f822797928151bf3d659d3e28661e4c3a (
plain)
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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/// Make sure pm_runtime_* calls does not use unnecessary IS_ERR_VALUE
///
// Keywords: pm_runtime
// Confidence: Medium
// Copyright (C) 2013 Texas Instruments Incorporated - GPLv2.
// URL: http://coccinelle.lip6.fr/
// Options: --include-headers
virtual patch
virtual context
virtual org
virtual report
//----------------------------------------------------------
// Detection
//----------------------------------------------------------
@runtime_bad_err_handle exists@
expression ret;
position p;
@@
(
ret@p = \(pm_runtime_idle\|
pm_runtime_suspend\|
pm_runtime_autosuspend\|
pm_runtime_resume\|
pm_request_idle\|
pm_request_resume\|
pm_request_autosuspend\|
pm_runtime_get\|
pm_runtime_get_sync\|
pm_runtime_put\|
pm_runtime_put_autosuspend\|
pm_runtime_put_sync\|
pm_runtime_put_sync_suspend\|
pm_runtime_put_sync_autosuspend\|
pm_runtime_set_active\|
pm_schedule_suspend\|
pm_runtime_barrier\|
pm_generic_runtime_suspend\|
pm_generic_runtime_resume\)(...);
...
IS_ERR_VALUE(ret)
...
)
//----------------------------------------------------------
// For context mode
//----------------------------------------------------------
@depends on context@
identifier pm_runtime_api;
expression ret;
position runtime_bad_err_handle.p;
@@
(
ret@p = pm_runtime_api(...);
...
* IS_ERR_VALUE(ret)
...
)
//----------------------------------------------------------
// For patch mode
//----------------------------------------------------------
@depends on patch@
identifier pm_runtime_api;
expression ret;
position runtime_bad_err_handle.p;
@@
(
ret@p = pm_runtime_api(...);
...
- IS_ERR_VALUE(ret)
+ ret < 0
...
)
//----------------------------------------------------------
// For org and report mode
//----------------------------------------------------------
@r depends on (org || report) exists@
position p1, p2;
identifier pm_runtime_api;
expression ret;
position runtime_bad_err_handle.p;
@@
(
ret@p = pm_runtime_api@p1(...);
...
IS_ERR_VALUE@p2(ret)
...
)
@script:python depends on org@
p1 << r.p1;
p2 << r.p2;
pm_runtime_api << r.pm_runtime_api;
@@
cocci.print_main(pm_runtime_api,p1)
cocci.print_secs("IS_ERR_VALUE",p2)
@script:python depends on report@
p1 << r.p1;
p2 << r.p2;
pm_runtime_api << r.pm_runtime_api;
@@
msg = "%s returns < 0 as error. Unecessary IS_ERR_VALUE at line %s" % (pm_runtime_api, p2[0].line)
coccilib.report.print_report(p1[0],msg)
|
