x86/resctrl: Fix an imbalance in domain_remove_cpu()

[mirror_ubuntu-bionic-kernel.git] / arch / x86 / kernel / cpu / intel_rdt.c

diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index 00fca6a727adb0b04ab7969b09bbc6f3a9c43257..5a2384592aa9cbf49bcdc7c94f977d7fd06a83c7 100644 (file)
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -526,7 +526,7 @@ static void domain_remove_cpu(int cpu, struct rdt_resource *r)
                if (static_branch_unlikely(&rdt_mon_enable_key))
                        rmdir_mondata_subdir_allrdtgrp(r, d->id);
                list_del(&d->list);
-               if (is_mbm_enabled())
+               if (r->mon_capable && is_mbm_enabled())
                        cancel_delayed_work(&d->mbm_over);
                if (is_llc_occupancy_enabled() &&  has_busy_rmid(r, d)) {
                        /*