Messages in this thread Patch in this message | | | From | Suzuki K Poulose <> | Subject | [PATCH 1/2] perf: arm_spe: Prevent module unload while the PMU is in use | Date | Fri, 3 Nov 2017 11:45:17 +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 SPE pmu driver to fill in this field.
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/perf/arm_spe_pmu.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c index 50511b13fd35..8ce262fc2561 100644 --- a/drivers/perf/arm_spe_pmu.c +++ b/drivers/perf/arm_spe_pmu.c @@ -889,6 +889,7 @@ static int arm_spe_pmu_perf_init(struct arm_spe_pmu *spe_pmu) struct device *dev = &spe_pmu->pdev->dev; spe_pmu->pmu = (struct pmu) { + .module = THIS_MODULE, .capabilities = PERF_PMU_CAP_EXCLUSIVE | PERF_PMU_CAP_ITRACE, .attr_groups = arm_spe_pmu_attr_groups, /* -- 2.13.6
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