tree 42b967f676e8054a222e58521024babe250b88c9
parent 6c67716d64103e5a8e23c45dcdfc76520033d479
author Peter Hurley <peter@hurleysoftware.com> 1386010563 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1386550565 -0800

tty: Always handle NULL flag ptr

Most line disciplines already handle the undocumented NULL flag
ptr in their .receive_buf method; however, several don't.

Document the NULL flag ptr, and correct handling in the
N_MOUSE, N_GSM0710 and N_R394 line disciplines.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>