Commit c7f5828b authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Will Deacon

arm-ccn: perf: Prevent module unload while PMU is in use

When the PMU driver is built as a module, the perf expects the
pmu->module to be valid, so that the driver is prevented from
being unloaded while it is in use. Fix the CCN pmu driver to
fill in this field.

Fixes: a33b0daa ("bus: ARM CCN PMU driver")
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent 19b4aff2
...@@ -1276,6 +1276,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn) ...@@ -1276,6 +1276,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn)
/* Perf driver registration */ /* Perf driver registration */
ccn->dt.pmu = (struct pmu) { ccn->dt.pmu = (struct pmu) {
.module = THIS_MODULE,
.attr_groups = arm_ccn_pmu_attr_groups, .attr_groups = arm_ccn_pmu_attr_groups,
.task_ctx_nr = perf_invalid_context, .task_ctx_nr = perf_invalid_context,
.event_init = arm_ccn_pmu_event_init, .event_init = arm_ccn_pmu_event_init,
......
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