Bluetooth: hidp: Let hidp_send_message return number of queued bytes
authorFabian Henneke <fabian.henneke@gmail.com>
Mon, 15 Jul 2019 17:40:56 +0000 (19:40 +0200)
committerMarcel Holtmann <marcel@holtmann.org>
Mon, 12 Aug 2019 16:23:50 +0000 (18:23 +0200)
commit48d9cc9d85dde37c87abb7ac9bbec6598ba44b56
tree771aae0f6142b00e51c986aac85a21613085321f
parenta2780889e247561744dd8efbd3478a1999b72ae3
Bluetooth: hidp: Let hidp_send_message return number of queued bytes

Let hidp_send_message return the number of successfully queued bytes
instead of an unconditional 0.

With the return value fixed to 0, other drivers relying on hidp, such as
hidraw, can not return meaningful values from their respective
implementations of write(). In particular, with the current behavior, a
hidraw device's write() will have different return values depending on
whether the device is connected via USB or Bluetooth, which makes it
harder to abstract away the transport layer.

Signed-off-by: Fabian Henneke <fabian.henneke@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
net/bluetooth/hidp/core.c