This is a note to let you know that I've just added the patch titled
firmware: arm_ffa: Remove incorrect assignment of driver_data
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
firmware-arm_ffa-remove-incorrect-assignment-of-driv.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 025f7f9b6d7d38b222470320f4474cb6e3e4abec
Author: Sudeep Holla <sudeep.holla@xxxxxxx>
Date: Fri Apr 29 12:39:44 2022 +0100
firmware: arm_ffa: Remove incorrect assignment of driver_data
[ 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@xxxxxxx
Fixes: d0c0bce83122 ("firmware: arm_ffa: Setup in-kernel users of FFA partitions")
Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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);
}
