Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2bcb2b64 authored by Robert Richter's avatar Robert Richter
Browse files

oprofile, ARM: Rework op_create_counter() 



This patch simplifies op_create_counter(). Removing if/else if paths
and return code variable by direct returning from function.

Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarRobert Richter <robert.richter@amd.com>
parent 9c91283a

drivers/oprofile/oprofile_perf.c

+10 −10
Original line number Diff line number Diff line
@@ -71,28 +71,28 @@ static void op_perf_setup(void) 


static int op_create_counter(int cpu, int event)

{

	int ret = 0;

	struct perf_event *pevent;



	if (!counter_config[event].enabled || (perf_events[cpu][event] != NULL))

		return ret;

	if (!counter_config[event].enabled || perf_events[cpu][event])

		return 0;



	pevent = perf_event_create_kernel_counter(&counter_config[event].attr,

						  cpu, -1,

						  op_overflow_handler);



	if (IS_ERR(pevent)) {

		ret = PTR_ERR(pevent);

	} else if (pevent->state != PERF_EVENT_STATE_ACTIVE) {

	if (IS_ERR(pevent))

		return PTR_ERR(pevent);



	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;

	} else {

		perf_events[cpu][event] = pevent;

		return -EBUSY;

	}



	return ret;

	perf_events[cpu][event] = pevent;



	return 0;

}



static void op_destroy_counter(int cpu, int event)