tree eb4df7ffc543e5c5b7c330aa9b6292f1e407c2ef
parent e73f0f0ee7541171d89f2e2491130c7771ba58d3
author Uwe Kleine-König <u.kleine-koenig@pengutronix.de> 1624306611 +0200
committer Sudeep Holla <sudeep.holla@arm.com> 1626096006 +0100

firmware: arm_ffa: Ensure drivers provide a probe function

The bus probe callback calls the driver callback without further
checking. Better be safe than sorry and refuse registration of a driver
without a probe function to prevent a NULL pointer exception.

Link: https://lore.kernel.org/r/20210621201652.127611-1-u.kleine-koenig@pengutronix.de
Fixes: e781858488b9 ("firmware: arm_ffa: Add initial FFA bus support for device enumeration")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>