This is a note to let you know that I've just added the patch titled

md.c:didn't unlock the mddev before return EINVAL in array_size_store

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: md.c-didn-t-unlock-the-mddev-before-return-einval-in-array_size_store.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Sun Mar 18 16:55:33 CET 2018

From: Zhilong Liu zlliu@suse.com Date: Mon, 10 Apr 2017 14:15:55 +0800 Subject: md.c:didn't unlock the mddev before return EINVAL in array_size_store

From: Zhilong Liu zlliu@suse.com

[ Upstream commit b670883bb9e55ba63a278d83e034faefc01ce2cf ]

md.c: it needs to release the mddev lock before the array_size_store() returns.

Fixes: ab5a98b132fd ("md-cluster: change array_sectors and update size are not supported")

Signed-off-by: Zhilong Liu zlliu@suse.com Reviewed-by: Guoqing Jiang gqjiang@suse.com Signed-off-by: Shaohua Li shli@fb.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/md.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4826,8 +4826,10 @@ array_size_store(struct mddev *mddev, co return err;

/* cluster raid doesn't support change array_sectors */ - if (mddev_is_clustered(mddev)) + if (mddev_is_clustered(mddev)) { + mddev_unlock(mddev); return -EINVAL; + }

if (strncmp(buf, "default", 7) == 0) { if (mddev->pers)

Patches currently in stable-queue which might be from zlliu@suse.com are

queue-4.9/md.c-didn-t-unlock-the-mddev-before-return-einval-in-array_size_store.patch