Commit fd7cbb5a authored Dec 18, 2017 by Al Viro Committed by Greg Kroah-Hartman Mar 03, 2018

sget(): handle failures of register_shrinker()




[ Upstream commit 9ee332d99e4d5a97548943b81c54668450ce641b ]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 9a5bd36c

fs/super.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -519,7 +519,11 @@ struct super_block sget_userns(struct file_system_type type,
		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;
		}