slimbus: core: do not call device_status under a lock

Calling device_status callback under a lock would prevent drivers
to do any slimbus trasactions which would invoke this lock like
get_laddr(). Remove this unnecessary lock!
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/slimbus/core.c

@@ -466,6 +466,7 @@ static int slim_device_alloc_laddr(struct slim_device *sbdev,
 
 	sbdev->laddr = laddr;
 	sbdev->is_laddr_valid = true;
+	mutex_unlock(&ctrl->lock);
 
 	slim_device_update_status(sbdev, SLIM_DEVICE_STATUS_UP);
 
@@ -473,6 +474,8 @@ static int slim_device_alloc_laddr(struct slim_device *sbdev,
 		laddr, sbdev->e_addr.manf_id, sbdev->e_addr.prod_code,
 		sbdev->e_addr.dev_index, sbdev->e_addr.instance);
 
+	return 0;
+
 err:
 	mutex_unlock(&ctrl->lock);
 	return ret;