1 files changed, 9 insertions, 10 deletions

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 88b0941ce51e..5bb91bf3d47f 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -59,8 +59,7 @@ armpmu_get_pmu_id(void)
 }
 EXPORT_SYMBOL_GPL(armpmu_get_pmu_id);
 
-int
-armpmu_get_max_events(void)
+int perf_num_counters(void)
 {
         int max_events = 0;
 
@@ -69,12 +68,6 @@ armpmu_get_max_events(void)
 
         return max_events;
 }
-EXPORT_SYMBOL_GPL(armpmu_get_max_events);
-
-int perf_num_counters(void)
-{
-        return armpmu_get_max_events();
-}
 EXPORT_SYMBOL_GPL(perf_num_counters);
 
 #define HW_OP_UNSUPPORTED               0xFFFF
@@ -380,6 +373,8 @@ armpmu_release_hardware(struct arm_pmu *armpmu)
 {
         int i, irq, irqs;
         struct platform_device *pmu_device = armpmu->plat_device;
+        struct arm_pmu_platdata *plat =
+                dev_get_platdata(&pmu_device->dev);
 
         irqs = min(pmu_device->num_resources, num_possible_cpus());
 
@@ -387,8 +382,11 @@ armpmu_release_hardware(struct arm_pmu *armpmu)
                 if (!cpumask_test_and_clear_cpu(i, &armpmu->active_irqs))
                         continue;
                 irq = platform_get_irq(pmu_device, i);
-                if (irq >= 0)
+                if (irq >= 0) {
+                        if (plat && plat->disable_irq)
+                                plat->disable_irq(irq);
                         free_irq(irq, armpmu);
+                }
         }
 
         release_pmu(armpmu->type);
@@ -448,7 +446,8 @@ armpmu_reserve_hardware(struct arm_pmu *armpmu)
                                 irq);
                         armpmu_release_hardware(armpmu);
                         return err;
-                }
+                } else if (plat && plat->enable_irq)
+                        plat->enable_irq(irq);
 
                 cpumask_set_cpu(i, &armpmu->active_irqs);
         }