Commit b3d58eaf authored Apr 27, 2016 by Al Viro

atomic_open(): be paranoid about may_open() return value



It should never return positives; however, with Linux S&M crowd
involved, no bogosity is impossible.  Results would be unpleasant...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent 0fb1ea09

fs/namei.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2920,6 +2920,8 @@ static int atomic_open(struct nameidata nd, struct dentry dentry,
		acc_mode = 0;
		}
		error = may_open(&file->f_path, acc_mode, open_flag);
		if (WARN_ON(error > 0))
		error = -EINVAL;
		out:
		dput(dentry);
		return error;