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-rw-r--r--arch/arm/oprofile/common.c7
-rw-r--r--arch/x86/kernel/cpu/perf_event_p4.c6
-rw-r--r--arch/x86/oprofile/nmi_int.c1
3 files changed, 11 insertions, 3 deletions
diff --git a/arch/arm/oprofile/common.c b/arch/arm/oprofile/common.c
index 0691176899ff..72e09eb642dd 100644
--- a/arch/arm/oprofile/common.c
+++ b/arch/arm/oprofile/common.c
@@ -102,6 +102,7 @@ static int op_create_counter(int cpu, int event)
if (IS_ERR(pevent)) {
ret = PTR_ERR(pevent);
} else if (pevent->state != PERF_EVENT_STATE_ACTIVE) {
+ perf_event_release_kernel(pevent);
pr_warning("oprofile: failed to enable event %d "
"on CPU %d\n", event, cpu);
ret = -EBUSY;
@@ -365,6 +366,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
ret = init_driverfs();
if (ret) {
kfree(counter_config);
+ counter_config = NULL;
return ret;
}
@@ -402,7 +404,6 @@ void oprofile_arch_exit(void)
struct perf_event *event;
if (*perf_events) {
- exit_driverfs();
for_each_possible_cpu(cpu) {
for (id = 0; id < perf_num_counters; ++id) {
event = perf_events[cpu][id];
@@ -413,8 +414,10 @@ void oprofile_arch_exit(void)
}
}
- if (counter_config)
+ if (counter_config) {
kfree(counter_config);
+ exit_driverfs();
+ }
}
#else
int __init oprofile_arch_init(struct oprofile_operations *ops)
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c
index b560db3305be..249015173992 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/kernel/cpu/perf_event_p4.c
@@ -660,8 +660,12 @@ static int p4_pmu_handle_irq(struct pt_regs *regs)
for (idx = 0; idx < x86_pmu.num_counters; idx++) {
int overflow;
- if (!test_bit(idx, cpuc->active_mask))
+ if (!test_bit(idx, cpuc->active_mask)) {
+ /* catch in-flight IRQs */
+ if (__test_and_clear_bit(idx, cpuc->running))
+ handled++;
continue;
+ }
event = cpuc->events[idx];
hwc = &event->hw;
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 009b819f48d0..f1575c9a2572 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -674,6 +674,7 @@ static int __init ppro_init(char **cpu_type)
case 0x0f:
case 0x16:
case 0x17:
+ case 0x1d:
*cpu_type = "i386/core_2";
break;
case 0x1a: