firmware: arm_sdei: Remove while loop in sdei_event_unregister()
This removes the unnecessary while loop in sdei_event_unregister()
because of the following two reasons. This shouldn't cause any
functional changes.
* The while loop is executed for once, meaning it's not needed
in theory.
* With the while loop removed, the nested statements can be
avoid to make the code a bit cleaner.
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20200922130423.10173-10-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c
index 6595bd6..790bff70 100644
--- a/drivers/firmware/arm_sdei.c
+++ b/drivers/firmware/arm_sdei.c
@@ -491,24 +491,23 @@ int sdei_event_unregister(u32 event_num)
mutex_lock(&sdei_events_lock);
event = sdei_event_find(event_num);
- do {
- if (!event) {
- pr_warn("Event %u not registered\n", event_num);
- err = -ENOENT;
- break;
- }
+ if (!event) {
+ pr_warn("Event %u not registered\n", event_num);
+ err = -ENOENT;
+ goto unlock;
+ }
- spin_lock(&sdei_list_lock);
- event->reregister = false;
- event->reenable = false;
- spin_unlock(&sdei_list_lock);
+ spin_lock(&sdei_list_lock);
+ event->reregister = false;
+ event->reenable = false;
+ spin_unlock(&sdei_list_lock);
- err = _sdei_event_unregister(event);
- if (err)
- break;
+ err = _sdei_event_unregister(event);
+ if (err)
+ goto unlock;
- sdei_event_destroy(event);
- } while (0);
+ sdei_event_destroy(event);
+unlock:
mutex_unlock(&sdei_events_lock);
return err;