aboutsummaryrefslogtreecommitdiffstats
path: root/scripts/coccinelle/api/pm_runtime.cocci
blob: f01789e967ec4bc10b5cb5aae8f83fc3e6ab2408 (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
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
/// 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;
@@
(
ret = \(pm_runtime_idle\|
	pm_runtime_suspend\|
	pm_runtime_autosuspend\|
	pm_runtime_resume\|
	pm_request_idle\|
	pm_request_resume\|
	pm_request_autosuspend\|
	pm_runtime_get\|
	pm_runtime_get_sync\|
	pm_runtime_put\|
	pm_runtime_put_autosuspend\|
	pm_runtime_put_sync\|
	pm_runtime_put_sync_suspend\|
	pm_runtime_put_sync_autosuspend\|
	pm_runtime_set_active\|
	pm_schedule_suspend\|
	pm_runtime_barrier\|
	pm_generic_runtime_suspend\|
	pm_generic_runtime_resume\)(...);
...
IS_ERR_VALUE(ret)
...
)

//----------------------------------------------------------
//  For context mode
//----------------------------------------------------------

@depends on runtime_bad_err_handle && context@
identifier pm_runtime_api;
expression ret;
@@
(
ret = pm_runtime_api(...);
...
* IS_ERR_VALUE(ret)
...
)

//----------------------------------------------------------
//  For patch mode
//----------------------------------------------------------

@depends on runtime_bad_err_handle && patch@
identifier pm_runtime_api;
expression ret;
@@
(
ret = pm_runtime_api(...);
...
- IS_ERR_VALUE(ret)
+ ret < 0
...
)

//----------------------------------------------------------
//  For org and report mode
//----------------------------------------------------------

@r depends on runtime_bad_err_handle exists@
position p1, p2;
identifier pm_runtime_api;
expression ret;
@@
(
ret = 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)