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From: Gavin Shan <gshan@redhat.com>
To: linux-arm-kernel@lists.infradead.org
Cc: mark.rutland@arm.com, catalin.marinas@arm.com,
	james.morse@arm.com, shan.gavin@gmail.com,
	Jonathan.Cameron@huawei.com, will@kernel.org
Subject: [PATCH v4 09/15] drivers/firmware/sdei: Remove while loop in sdei_event_unregister()
Date: Thu, 30 Jul 2020 11:45:24 +1000	[thread overview]
Message-ID: <20200730014531.310465-10-gshan@redhat.com> (raw)
In-Reply-To: <20200730014531.310465-1-gshan@redhat.com>

This removes the unnecessary while loop in sdei_event_unregister().
This shouldn't cause any functional changes.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 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 d04329f98922..c8e894098c56 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;
-- 
2.23.0


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  parent reply	other threads:[~2020-07-30  1:49 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-30  1:45 [PATCH v4 00/15] Refactor SDEI client driver Gavin Shan
2020-07-30  1:45 ` [PATCH v4 01/15] drivers/firmware/sdei: Remove sdei_is_err() Gavin Shan
2020-07-30  1:45 ` [PATCH v4 02/15] drivers/firmware/sdei: Common block for failing path in sdei_event_create() Gavin Shan
2020-09-18 16:10   ` James Morse
2020-07-30  1:45 ` [PATCH v4 03/15] drivers/firmware/sdei: Retrieve event number from event instance Gavin Shan
2020-09-18 16:11   ` James Morse
2020-07-30  1:45 ` [PATCH v4 04/15] drivers/firmware/sdei: Avoid nested statements in sdei_init() Gavin Shan
2020-09-18 16:11   ` James Morse
2020-07-30  1:45 ` [PATCH v4 05/15] drivers/firmware/sdei: Unregister driver on error " Gavin Shan
2020-09-18 16:12   ` James Morse
2020-09-20  1:10     ` Gavin Shan
2020-07-30  1:45 ` [PATCH v4 06/15] drivers/firmware/sdei: Remove duplicate check in sdei_get_conduit() Gavin Shan
2020-09-18 16:12   ` James Morse
2020-07-30  1:45 ` [PATCH v4 07/15] drivers/firmware/sdei: Remove Drop redundant error message in sdei_probe() Gavin Shan
2020-09-18 16:12   ` James Morse
2020-07-30  1:45 ` [PATCH v4 08/15] drivers/firmware/sdei: Remove while loop in sdei_event_register() Gavin Shan
2020-09-18 16:13   ` James Morse
2020-09-20  2:18     ` Gavin Shan
2020-07-30  1:45 ` Gavin Shan [this message]
2020-07-30  1:45 ` [PATCH v4 10/15] drivers/firmware/sdei: Cleanup on cross call function Gavin Shan
2020-09-18 16:13   ` James Morse
2020-07-30  1:45 ` [PATCH v4 11/15] drivers/firmware/sdei: Introduce sdei_do_local_call() Gavin Shan
2020-09-18 16:13   ` James Morse
2020-07-30  1:45 ` [PATCH v4 12/15] drivers/firmware/sdei: Remove _sdei_event_register() Gavin Shan
2020-09-18 16:14   ` James Morse
2020-07-30  1:45 ` [PATCH v4 13/15] drivers/firmware/sdei: Remove _sdei_event_unregister() Gavin Shan
2020-09-18 16:14   ` James Morse
2020-07-30  1:45 ` [PATCH v4 14/15] drivers/firmware/sdei: Expose struct sdei_event Gavin Shan
2020-07-30 10:54   ` Jonathan Cameron
2020-07-31  0:20     ` Gavin Shan
2020-09-18 16:15   ` James Morse
2020-09-20  2:42     ` Gavin Shan
2020-07-30  1:45 ` [PATCH v4 15/15] drivers/firmware/sdei: Identify event by " Gavin Shan
2020-07-30  8:03 ` [PATCH v4 00/15] Refactor SDEI client driver Gavin Shan
2020-08-27  6:55   ` Gavin Shan

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