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
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16e87459
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