path: root/drivers/bus
diff options
authorSuzuki K Poulose <suzuki.poulose@arm.com>2017-11-03 11:45:18 +0000
committerWill Deacon <will.deacon@arm.com>2017-11-03 15:24:06 +0000
commitc7f5828bf77dcbd61d51f4736c1d5aa35663fbb4 (patch)
treea2366e8c25bd2ce8d017d4432be84de665237751 /drivers/bus
parent19b4aff2025b4336392c30bb638b7d01c6263301 (diff)
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: a33b0daab73a0 ("bus: ARM CCN PMU driver") Cc: Pawel Moll <pawel.moll@arm.com> 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/bus')
1 files changed, 1 insertions, 0 deletions
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,

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