linux-kernel - [PATCH] serial: omap: Initialize platform

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Date:	Mon, 8 Jul 2013 10:25:43 +0300
From:	Alexander Savchenko <oleksandr.savchenko@...com>
To:	<gregkh@...uxfoundation.org>, <jslaby@...e.cz>
CC:	<linux-serial@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Alexander Savchenko <oleksandr.savchenko@...com>
Subject: [PATCH] serial: omap: Initialize platform_data

From: Vikram Pandita <vikram.pandita@...com>

Otherwise serial driver would crash accessing platform_data that was
not initialized in functions like:

        serial_omap_pm(...)
        ...
        if (!state && pdata->enable_wakeup)
                   ^^^^^^^
        ...

Signed-off-by: Vikram Pandita <vikram.pandita@...com>
Signed-off-by: Alexander Savchenko <oleksandr.savchenko@...com>
---
 drivers/tty/serial/omap-serial.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index b6d1728..e42b4c9 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1402,8 +1402,10 @@ static int serial_omap_probe(struct platform_device *pdev)
 	struct omap_uart_port_info *omap_up_info = pdev->dev.platform_data;
 	int ret;
 
-	if (pdev->dev.of_node)
+	if (pdev->dev.of_node) {
 		omap_up_info = of_get_uart_port_info(&pdev->dev);
+		pdev->dev.platform_data = omap_up_info;
+	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!mem) {
-- 
1.7.9.5

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