perf/x86: Unregister PMI handler on PMU init failure

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Fix an NMI handler leak in init_hw_perf_events(). When PMU
initialization fails after register_nmi_handler(), the error path
exits without calling unregister_nmi_handler(), leaving a stale
NMI_LOCAL "PMI" handler registered. Add the missing call before
clearing x86_pmu state.

Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Reviewed-by: Zide Chen <zide.chen@intel.com>
Link: https://patch.msgid.link/20260717080342.1879573-2-dapeng1.mi@linux.intel.com

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Dapeng Mi 2026-07-17 16:03:35 +08:00 • committed by Peter Zijlstra

parent 2e17bf3a46

commit 91787047b1

1 changed files with 3 additions and 1 deletions

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arch/x86/events/core.c

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