[PATCH -next v2 6/7] md: don't check 'mddev->pers' from suspend_hi_store()

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From: Yu Kuai <yukuai3@xxxxxxxxxx>

Now that mddev_suspend() doean't rely on 'mddev->pers' to be set, it's
safe to remove such checking.

This will also allow the array to be suspended even before the array
is ran.

Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
 drivers/md/md.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index e787900d51d7..558cc752eb00 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5217,18 +5217,13 @@ suspend_hi_store(struct mddev *mddev, const char *buf, size_t len)
 	err = mddev_lock(mddev);
 	if (err)
 		return err;
-	err = -EINVAL;
-	if (mddev->pers == NULL)
-		goto unlock;
 
 	mddev_suspend(mddev);
 	mddev->suspend_hi = new;
 	mddev_resume(mddev);
 
-	err = 0;
-unlock:
 	mddev_unlock(mddev);
-	return err ?: len;
+	return len;
 }
 static struct md_sysfs_entry md_suspend_hi =
 __ATTR(suspend_hi, S_IRUGO|S_IWUSR, suspend_hi_show, suspend_hi_store);
-- 
2.39.2

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