| commit | 27cfb3a53be46a54ec5e0bd04e51995b74c90343 | [log] [tgz] |
|---|---|---|
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Sun Jan 20 10:46:58 2019 +0100 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Mon Jan 21 17:41:02 2019 +0100 |
| tree | 04163f2cb58466c7620882f449e0af71ff100bae | |
| parent | bfd8d8fe98b8792f362cd210a7873969f8d2fc04 [diff] |
tty: Handle problem if line discipline does not have receive_buf Some tty line disciplines do not have a receive buf callback, so properly check for that before calling it. If they do not have this callback, just eat the character quietly, as we can't fail this call. Reported-by: Jann Horn <jannh@google.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>