tree 67b4079ff842ae9035aa8024bfb790e9fd72f513
parent 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
author Al Viro <viro@zeniv.linux.org.uk> 1512012814 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1512405252 -0500

fix kcm_clone()

1) it's fput() or sock_release(), not both
2) don't do fd_install() until the last failure exit.
3) not a bug per se, but... don't attach socket to struct file
   until it's set up.

Take reserving descriptor into the caller, move fd_install() to the
caller, sanitize failure exits and calling conventions.

Cc: stable@vger.kernel.org # v4.6+
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>