Commit 92743071 authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Sudeep Holla
Browse files

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: e7818584

 ("firmware: arm_ffa: Add initial FFA bus support for device enumeration")
Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent e73f0f0e
......@@ -99,6 +99,9 @@ int ffa_driver_register(struct ffa_driver *driver, struct module *owner,
{
int ret;
if (!driver->probe)
return -EINVAL;
driver->driver.bus = &ffa_bus_type;
driver->driver.name = driver->name;
driver->driver.owner = owner;
......
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