firmware: arm_ffa: Remove incorrect assignment of driver_data

[ Upstream commit 00512d2 ]

The ffa core driver currently assigns its own driver information
to individual ffa device driver_data which is wrong. Firstly, it leaks
this core driver information to individual ffa_device and hence to
ffa_driver. Secondly the ffa_device driver_data is for use by individual
ffa_driver and not for this core driver managing all those devices.

Link: https://lore.kernel.org/r/20220429113946.2087145-2-sudeep.holla@arm.com
Fixes: d0c0bce ("firmware: arm_ffa: Setup in-kernel users of FFA partitions")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/firmware/arm_ffa/driver.c

@@ -688,8 +688,6 @@ static void ffa_setup_partitions(void)
 			       __func__, tpbuf->id);
 			continue;
 		}
-
-		ffa_dev_set_drvdata(ffa_dev, drv_info);
 	}
 	kfree(pbuf);
 }