[PATCH 5.17 509/772] firmware: arm_ffa: Remove incorrect assignment of driver_data

Greg Kroah-Hartman
2022-06-07T21:23:18Z

From: Sudeep Holla <sudeep.holla@arm.com>

[ Upstream commit 00512d2930b338fdd42bd90bbd1793fe212c2d31 ]

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: d0c0bce83122 ("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 | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 8fa1785afd42..44300dbcc643 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/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);
}
--
2.35.1