firmware: arm_ffa: Add missing rwlock_init() in ffa_setup_partitions()

hrw · hrw · commit 7a695a3e0558 · 2025-07-24T08:23:01.000+02:00
JIRA: https://issues.redhat.com/browse/RHEL-102691 commit 59b2e24 Author: Cristian Marussi <cristian.marussi@arm.com> Date: Mon, 8 Jan 2024 12:34:11 +0000 Add the missing rwlock initialization for the individual FF-A partition information in ffa_setup_partitions(). Fixes: 0184450 ("firmware: arm_ffa: Add schedule receiver callback mechanism") Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Link: https://lore.kernel.org/r/20240108-ffa_fixes_6-8-v1-1-75bf7035bc50@arm.com Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Marcin Juszkiewicz <mjuszkiewicz@redhat.com>
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
@@ -1226,6 +1226,7 @@ static void ffa_setup_partitions(void)
 			ffa_device_unregister(ffa_dev);
 			continue;
 		}
+		rwlock_init(&info->rw_lock);
 		xa_store(&drv_info->partition_info, tpbuf->id, info, GFP_KERNEL);
 	}
 	drv_info->partition_count = count;

Original file line number	Diff line number	Diff line change
`@@ -1226,6 +1226,7 @@ static void ffa_setup_partitions(void)`
`1226`	`1226`	`ffa_device_unregister(ffa_dev);`
`1227`	`1227`	`continue;`
`1228`	`1228`	`}`
	`1229`	`+ rwlock_init(&info->rw_lock);`
`1229`	`1230`	`xa_store(&drv_info->partition_info, tpbuf->id, info, GFP_KERNEL);`
`1230`	`1231`	`}`
`1231`	`1232`	`drv_info->partition_count = count;`