[PATCH -next 08/10] serial: core: Colocate crucial structure linkage

[Peter Hurley <peter@hurleysoftware.com>]

The key function of uart_add_one_port() is to cross-reference the
UART driver's port structure with the serial core's state table;
keep the assignments together and document this crucial association.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
 drivers/tty/serial/serial_core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 676c03a..e04ae58 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2594,11 +2594,12 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport)
 		goto out;
 	}
 
+	/* Link the port to the driver state table and vice versa */
 	state->uart_port = uport;
-	state->pm_state = UART_PM_STATE_UNDEFINED;
+	uport->state = state;
 
+	state->pm_state = UART_PM_STATE_UNDEFINED;
 	uport->cons = drv->cons;
-	uport->state = state;
 
 	/*
 	 * If this port is a console, then the spinlock is already
-- 
2.1.1