Files
android/scripts/coccinelle/api/pm_runtime.cocci
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

114 lines
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/// 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)