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authorSuzuki K Poulose <suzuki.poulose@arm.com>2017-11-03 11:45:17 +0000
committerWill Deacon <will.deacon@arm.com>2017-11-03 15:23:55 +0000
commit19b4aff2025b4336392c30bb638b7d01c6263301 (patch)
tree0cdebb53d7bc5bbec7f327cd4ee4c56069712570 /drivers/perf/arm_spe_pmu.c
parentd125bffcefb290743e4eac536886dba689edf1eb (diff)
perf: arm_spe: Prevent module unload while the 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 SPE pmu driver to fill in this field. Cc: Will Deacon <will.deacon@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/perf/arm_spe_pmu.c')
-rw-r--r--drivers/perf/arm_spe_pmu.c1
1 files changed, 1 insertions, 0 deletions
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,
/*

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