Merge branch 'oprofile/urgent' into oprofile/core
Conflicts:
arch/arm/oprofile/common.c
Signed-off-by: Robert Richter <robert.richter@amd.com>
diff --git a/arch/arm/oprofile/common.c b/arch/arm/oprofile/common.c
index 72e09eb..bd7426f 100644
--- a/arch/arm/oprofile/common.c
+++ b/arch/arm/oprofile/common.c
@@ -276,7 +276,7 @@
return ret;
}
-static void exit_driverfs(void)
+static void __exit exit_driverfs(void)
{
platform_device_unregister(oprofile_pdev);
platform_driver_unregister(&oprofile_driver);
@@ -352,6 +352,8 @@
{
int cpu, ret = 0;
+ memset(&perf_events, 0, sizeof(perf_events));
+
perf_num_counters = armpmu_get_max_events();
counter_config = kcalloc(perf_num_counters,
@@ -360,15 +362,13 @@
if (!counter_config) {
pr_info("oprofile: failed to allocate %d "
"counters\n", perf_num_counters);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out;
}
ret = init_driverfs();
- if (ret) {
- kfree(counter_config);
- counter_config = NULL;
- return ret;
- }
+ if (ret)
+ goto out;
for_each_possible_cpu(cpu) {
perf_events[cpu] = kcalloc(perf_num_counters,
@@ -376,9 +376,8 @@
if (!perf_events[cpu]) {
pr_info("oprofile: failed to allocate %d perf events "
"for cpu %d\n", perf_num_counters, cpu);
- while (--cpu >= 0)
- kfree(perf_events[cpu]);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out;
}
}
@@ -395,29 +394,33 @@
else
pr_info("oprofile: using %s\n", ops->cpu_type);
+out:
+ if (ret) {
+ for_each_possible_cpu(cpu)
+ kfree(perf_events[cpu]);
+ kfree(counter_config);
+ }
+
return ret;
}
-void oprofile_arch_exit(void)
+void __exit oprofile_arch_exit(void)
{
int cpu, id;
struct perf_event *event;
- if (*perf_events) {
- for_each_possible_cpu(cpu) {
- for (id = 0; id < perf_num_counters; ++id) {
- event = perf_events[cpu][id];
- if (event != NULL)
- perf_event_release_kernel(event);
- }
- kfree(perf_events[cpu]);
+ for_each_possible_cpu(cpu) {
+ for (id = 0; id < perf_num_counters; ++id) {
+ event = perf_events[cpu][id];
+ if (event)
+ perf_event_release_kernel(event);
}
+
+ kfree(perf_events[cpu]);
}
- if (counter_config) {
- kfree(counter_config);
- exit_driverfs();
- }
+ kfree(counter_config);
+ exit_driverfs();
}
#else
int __init oprofile_arch_init(struct oprofile_operations *ops)
@@ -425,5 +428,5 @@
pr_info("oprofile: hardware counters not available\n");
return -ENODEV;
}
-void oprofile_arch_exit(void) {}
+void __exit oprofile_arch_exit(void) {}
#endif /* CONFIG_HW_PERF_EVENTS */
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index b336cd9..b4a6857 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -257,16 +257,9 @@
printk(KERN_INFO "oprofile: using timer interrupt.\n");
err = oprofile_timer_init(&oprofile_ops);
if (err)
- goto out_arch;
+ return err;
}
- err = oprofilefs_register();
- if (err)
- goto out_arch;
- return 0;
-
-out_arch:
- oprofile_arch_exit();
- return err;
+ return oprofilefs_register();
}