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Message-Id: <1413492867-20679-9-git-send-email-peter@hurleysoftware.com>
Date: Thu, 16 Oct 2014 16:54:25 -0400
From: Peter Hurley <peter@...leysoftware.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
Jiri Slaby <jslaby@...e.cz>,
One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
Peter Hurley <peter@...leysoftware.com>
Subject: [PATCH -next 08/10] serial: core: Colocate crucial structure linkage
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@...leysoftware.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
--
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