tree c05ff22fb3bda8511ec18ffc997c31e074e1d0c3
parent 5adf54de97270256f6ec0e368ddde68ac516b692
author Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> 1348124350 +0200
committer Samuel Ortiz <sameo@linux.intel.com> 1348525047 +0200

NFC: xmit from hci ops must return 0 or negative

xmit callback provided by a driver encapsulates upper layers
data and sends it to the hardware. So, HCI does not know the
exact amount of data being sent and thus can't handle partially
sent frames properly.

Therefore, the driver must return 0 for completely sent frame or
negative for failure.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Acked-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>