1/// Make sure pm_runtime_* calls does not use unnecessary IS_ERR_VALUE
  2///
  3// Keywords: pm_runtime
  4// Confidence: Medium
  5// Copyright (C) 2013 Texas Instruments Incorporated - GPLv2.
  6// URL: http://coccinelle.lip6.fr/
  7// Options: --include-headers
  8
  9virtual patch
 10virtual context
 11virtual org
 12virtual report
 13
 14//----------------------------------------------------------
 15//  Detection
 16//----------------------------------------------------------
 17
 18@runtime_bad_err_handle exists@
 19expression ret;
 20position p;
 21@@
 22(
 23ret@p = \(pm_runtime_idle\|
 24	pm_runtime_suspend\|
 25	pm_runtime_autosuspend\|
 26	pm_runtime_resume\|
 27	pm_request_idle\|
 28	pm_request_resume\|
 29	pm_request_autosuspend\|
 30	pm_runtime_get\|
 31	pm_runtime_get_sync\|
 32	pm_runtime_put\|
 33	pm_runtime_put_autosuspend\|
 34	pm_runtime_put_sync\|
 35	pm_runtime_put_sync_suspend\|
 36	pm_runtime_put_sync_autosuspend\|
 37	pm_runtime_set_active\|
 38	pm_schedule_suspend\|
 39	pm_runtime_barrier\|
 40	pm_generic_runtime_suspend\|
 41	pm_generic_runtime_resume\)(...);
 42...
 43IS_ERR_VALUE(ret)
 44...
 45)
 46
 47//----------------------------------------------------------
 48//  For context mode
 49//----------------------------------------------------------
 50
 51@depends on context@
 52identifier pm_runtime_api;
 53expression ret;
 54position runtime_bad_err_handle.p;
 55@@
 56(
 57ret@p = pm_runtime_api(...);
 58...
 59* IS_ERR_VALUE(ret)
 60...
 61)
 62
 63//----------------------------------------------------------
 64//  For patch mode
 65//----------------------------------------------------------
 66
 67@depends on patch@
 68identifier pm_runtime_api;
 69expression ret;
 70position runtime_bad_err_handle.p;
 71@@
 72(
 73ret@p = pm_runtime_api(...);
 74...
 75- IS_ERR_VALUE(ret)
 76+ ret < 0
 77...
 78)
 79
 80//----------------------------------------------------------
 81//  For org and report mode
 82//----------------------------------------------------------
 83
 84@r depends on (org || report) exists@
 85position p1, p2;
 86identifier pm_runtime_api;
 87expression ret;
 88position runtime_bad_err_handle.p;
 89@@
 90(
 91ret@p = pm_runtime_api@p1(...);
 92...
 93IS_ERR_VALUE@p2(ret)
 94...
 95)
 96
 97@script:python depends on org@
 98p1 << r.p1;
 99p2 << r.p2;
100pm_runtime_api << r.pm_runtime_api;
101@@
102
103cocci.print_main(pm_runtime_api,p1)
104cocci.print_secs("IS_ERR_VALUE",p2)
105
106@script:python depends on report@
107p1 << r.p1;
108p2 << r.p2;
109pm_runtime_api << r.pm_runtime_api;
110@@
111
112msg = "%s returns < 0 as error. Unecessary IS_ERR_VALUE at line %s" % (pm_runtime_api, p2[0].line)
113coccilib.report.print_report(p1[0],msg)