Patch "sget(): handle failures of register_shrinker()" has been added to the 4.4-stable tree

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

sget(): handle failures of register_shrinker()

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
sget-handle-failures-of-register_shrinker.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Al Viro <[email protected]>
Date: Mon, 18 Dec 2017 15:05:07 -0500
Subject: sget(): handle failures of register_shrinker()

From: Al Viro <[email protected]>

[ Upstream commit 9ee332d99e4d5a97548943b81c54668450ce641b ]

---
 fs/super.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

@@ -497,7 +497,11 @@ retry:
 	hlist_add_head(&s->s_instances, &type->fs_supers);
 	spin_unlock(&sb_lock);
 	get_filesystem(type);
-	register_shrinker(&s->s_shrink);
+	err = register_shrinker(&s->s_shrink);
+	if (err) {
+		deactivate_locked_super(s);
+		s = ERR_PTR(err);
+	}
 	return s;
 }
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/sget-handle-failures-of-register_shrinker.patch