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| author | Krzysztof Kozlowski <[email protected]> | 2021-05-26 16:22:51 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2021-05-31 12:17:13 +0000 |
| commit | c58e7ed28b4534ed073371843d03c433d6a9fe34 (patch) | |
| tree | 1eddbefcfcc586e30435101425feaa96887eb283 /tools/perf/scripts/python/syscall-counts.py | |
| parent | Linux 5.13-rc4 (diff) | |
| download | kernel-c58e7ed28b4534ed073371843d03c433d6a9fe34.tar.gz kernel-c58e7ed28b4534ed073371843d03c433d6a9fe34.zip | |
PM: runtime: document common mistake with pm_runtime_get_sync()
pm_runtime_get_sync(), contradictory to intuition, does not drop the
runtime PM usage counter on errors which lead to several wrong usages in
drivers (missing the put). pm_runtime_resume_and_get() was added as a
better implementation so document the preference of using it, hoping it
will stop bad patterns.
Suggested-by: Marek Szyprowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
[ rjw: Documentation change edits ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions