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From: Cristian Marussi <cristian.marussi@arm.com>
Date: Mon, 08 Jan 2024 12:34:12 +0000
Subject: [PATCH 2/6] firmware: arm_ffa: Add missing host rwlock_init()
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Message-Id: <20240108-ffa_fixes_6-8-v1-2-75bf7035bc50@arm.com>
References: <20240108-ffa_fixes_6-8-v1-0-75bf7035bc50@arm.com>
In-Reply-To: <20240108-ffa_fixes_6-8-v1-0-75bf7035bc50@arm.com>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, 
 Cristian Marussi <cristian.marussi@arm.com>

Add missing rwlock initialization for host partition setup.

Fixes: 1b6bf41b7a65 ("firmware: arm_ffa: Add notification handling mechanism")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
 drivers/firmware/arm_ffa/driver.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index ed1d6a24934e..8df92c9521f4 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -1237,6 +1237,7 @@ 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++;
 }

-- 
2.34.1