static int __init oprofile_init(void)
{
int err;
/* always init architecture to setup backtrace support */
err = oprofile_arch_init(&oprofile_ops);
timer_mode = err || timer; /* fall back to timer mode on errors */
if (timer_mode) {
if (!err)
oprofile_arch_exit();
err = oprofile_timer_init(&oprofile_ops);
if (err)
return err;
}
err = oprofilefs_register();
if (!err)
return 0;
/* failed */
if (timer_mode)
oprofile_timer_exit();
else
oprofile_arch_exit();
return err;
}
static void __exit oprofile_exit(void)
{
oprofilefs_unregister();
if (timer_mode)
oprofile_timer_exit();
else
oprofile_arch_exit();
}
static int __init oprofile_init(void)
{
int err;
err = oprofile_arch_init(&oprofile_ops);
if (err < 0 || timer) {
printk(KERN_INFO "oprofile: using timer interrupt.\n");
oprofile_timer_init(&oprofile_ops);
}
err = oprofilefs_register();
if (err)
oprofile_arch_exit();
return err;
}
static void __exit oprofile_exit(void)
{
oprofile_timer_exit();
oprofilefs_unregister();
oprofile_arch_exit();
}