Messages in this thread Patch in this message | | | From | Suzuki K Poulose <> | Subject | [PATCH 2/2] arm-ccn: perf: Prevent module unload while PMU is in use | Date | Fri, 3 Nov 2017 11:45:18 +0000 |
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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: commit a33b0daab73a0 ("bus: ARM CCN PMU driver") Cc: Pawel Moll <pawel.moll@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- drivers/bus/arm-ccn.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/bus/arm-ccn.c b/drivers/bus/arm-ccn.c index e8c6946fed9d..3063f5312397 100644 --- a/drivers/bus/arm-ccn.c +++ b/drivers/bus/arm-ccn.c @@ -1276,6 +1276,7 @@ static int arm_ccn_pmu_init(struct arm_ccn *ccn) /* Perf driver registration */ ccn->dt.pmu = (struct pmu) { + .module = THIS_MODULE, .attr_groups = arm_ccn_pmu_attr_groups, .task_ctx_nr = perf_invalid_context, .event_init = arm_ccn_pmu_event_init, -- 2.13.6
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