From b06146b698e6e835253d01901ecf0ab84646591e Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Tue, 22 Sep 2020 23:04:19 +1000 Subject: [PATCH] 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 Reviewed-by: Jonathan Cameron Link: https://lore.kernel.org/r/20200922130423.10173-10-gshan@redhat.com Signed-off-by: Will Deacon --- drivers/firmware/arm_sdei.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c index 6595bd66aa73..790bff70d169 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;