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perf: arm_spe: Prevent module unload while the PMU is in use

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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 <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Signed-off-by: Suzuki K Poulose <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
This commit is contained in:
Suzuki K Poulose 2017-11-03 11:45:17 +00:00 • committed by Will Deacon
commit 19b4aff202
1 changed files with 1 additions and 0 deletions
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1
drivers/perf/arm_spe_pmu.c
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@ -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,
/*