[PATCH v7 4/9] md: return directly before setting did_set_md_closing

[linan666]

From: Li Nan <linan122@xxxxxxxxxx>

There is nothing to do at 'out' before setting 'did_set_md_closing'
in md_ioctl(). Return directly, and it will help us to remove
'did_set_md_closing' later.

Signed-off-by: Li Nan <linan122@xxxxxxxxxx>
---
 drivers/md/md.c | 25 ++++++++-----------------
 1 file changed, 8 insertions(+), 17 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 6432bdbddb1c..08b0f80274c0 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7625,26 +7625,19 @@ static int md_ioctl(struct block_device *bdev, blk_mode_t mode,
 	switch (cmd) {
 	case GET_ARRAY_INFO:
 		if (!mddev->raid_disks && !mddev->external)
-			err = -ENODEV;
-		else
-			err = get_array_info(mddev, argp);
-		goto out;
+			return -ENODEV;
+		return get_array_info(mddev, argp);
 
 	case GET_DISK_INFO:
 		if (!mddev->raid_disks && !mddev->external)
-			err = -ENODEV;
-		else
-			err = get_disk_info(mddev, argp);
-		goto out;
+			return -ENODEV;
+		return get_disk_info(mddev, argp);
 
 	case SET_DISK_FAULTY:
-		err = set_disk_faulty(mddev, new_decode_dev(arg));
-		goto out;
+		return set_disk_faulty(mddev, new_decode_dev(arg));
 
 	case GET_BITMAP_FILE:
-		err = get_bitmap_file(mddev, argp);
-		goto out;
-
+		return get_bitmap_file(mddev, argp);
 	}
 
 	if (cmd == HOT_REMOVE_DISK)
@@ -7660,13 +7653,11 @@ static int md_ioctl(struct block_device *bdev, blk_mode_t mode,
 		mutex_lock(&mddev->open_mutex);
 		if (mddev->pers && atomic_read(&mddev->openers) > 1) {
 			mutex_unlock(&mddev->open_mutex);
-			err = -EBUSY;
-			goto out;
+			return -EBUSY;
 		}
 		if (test_and_set_bit(MD_CLOSING, &mddev->flags)) {
 			mutex_unlock(&mddev->open_mutex);
-			err = -EBUSY;
-			goto out;
+			return -EBUSY;
 		}
 		did_set_md_closing = true;
 		mutex_unlock(&mddev->open_mutex);
-- 
2.39.2