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(parent: 1608ff1) | patch
drm/i915/pmu: Keep a reference to module while active
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 30 Apr 2020 18:33:24 +0000 (19:33 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 1 May 2020 08:24:34 +0000 (09:24 +0100)
commitf1dcb37a43ab869a7edb0a6bdfe7ec8c7f4e59a8
tree6a614fad606fb3a154c6d5c64bf63c8fce76457etree | snapshot
parent1608ff19fb1c06dc8a44e9bb0f7180ef7dd6d652commit | diff
drm/i915/pmu: Keep a reference to module while active

While a perf event is open, keep a reference to the module so we don't
remove the driver internals mid-sampling.

Testcase: igt/perf_pmu/module-unload
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430183324.23984-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_pmu.c diff | blob | history
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