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| author | Imre Deak <imre.deak@intel.com> | 2014-05-12 17:35:04 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-05-22 21:53:11 +0200 |
| commit | e494837aeed358ef58e66154cf7f1dac4ae3a9f5 (patch) | |
| tree | 4cc9105492870c92374a2e2b8b05a3a76963981b /drivers/gpu/drm/i915/i915_suspend.c | |
| parent | drm/i915: remove user GTT mappings early during runtime suspend (diff) | |
| download | linux-e494837aeed358ef58e66154cf7f1dac4ae3a9f5.tar.xz linux-e494837aeed358ef58e66154cf7f1dac4ae3a9f5.zip | |
drm/i915: fix possible RPM ref leaking during RPS disabling
In
commit c6df39b5ea6342323a42edfbeeca0a28c643d7ae
Author: Imre Deak <imre.deak@intel.com>
Date: Mon Apr 14 20:24:29 2014 +0300
drm/i915: get a runtime PM ref for the deferred GT powersave enabling
I added an RPM get-ref when enabling RPS from a deferred work, but forgot
to add the corresponding put-ref when canceling the work. This may leave
RPM disabled.
Note that the race is real since we run the rps enabling with a
delayed work item after resume, so leaves enough time (in contrived
examples) to fit a quick autoresum in.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Robert Beckett <robert.beckett@intel.com>
Testecase: igt/pm_rpm/system-suspend
[danvet: Mention testcase and add note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_suspend.c')
0 files changed, 0 insertions, 0 deletions