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UPSTREAM: firmware: arm_ffa: Add missing rwlock_init() for the driver partition

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Add the missing rwlock initialization for the FF-A partition associated
the driver in ffa_setup_partitions(). It will the primary scheduler
partition in the host or the VM partition in the virtualised environment.
IOW, it corresponds to the partition with VM ID == drv_info->vm_id.

Bug: 254441685
Fixes: 1b6bf41b7a ("firmware: arm_ffa: Add notification handling mechanism")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-2-75bf7035bc50@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 5ff30ade16)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I7c740f9e080036832c717ec1a23753ce9f83c739
This commit is contained in:
Cristian Marussi 2024-01-08 12:34:12 +00:00 committed by Lee Jones
parent 18bbf1be19
commit 1c8bc63929
1 changed files with 1 additions and 0 deletions
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1
drivers/firmware/arm_ffa/driver.c
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@ -1222,6 +1222,7 @@ static void ffa_setup_partitions(void)
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
return;
rwlock_init(&info->rw_lock);
xa_store(&drv_info->partition_info, drv_info->vm_id, info, GFP_KERNEL);
drv_info->partition_count++;
}