commit ec0237216e47335bbc7f2427519d6365922eb6a8
Author: Bas Vermeulen bas.vermeulen@novero.com <bvermeul@ubuntu-image.Cadavers>
Date:   Thu Feb 11 18:53:52 2010 +0100

    imx serial driver
    
    Check for NULL pointer before dereferencing, as it is possible and legal to
    pass in NULL for the platform data for a serial port.
    
    Signed-off-by: Bas Vermeulen <bas.vermeulen@novero.com>

diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 60d665a..d00fcf8 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -1279,7 +1279,7 @@ static int serial_imx_probe(struct platform_device *pdev)
 		sport->use_irda = 1;
 #endif
 
-	if (pdata->init) {
+	if (pdata && pdata->init) {
 		ret = pdata->init(pdev);
 		if (ret)
 			goto clkput;
@@ -1292,7 +1292,7 @@ static int serial_imx_probe(struct platform_device *pdev)
 
 	return 0;
 deinit:
-	if (pdata->exit)
+	if (pdata && pdata->exit)
 		pdata->exit(pdev);
 clkput:
 	clk_put(sport->clk);
@@ -1321,7 +1321,7 @@ static int serial_imx_remove(struct platform_device *pdev)
 
 	clk_disable(sport->clk);
 
-	if (pdata->exit)
+	if (pdata && pdata->exit)
 		pdata->exit(pdev);
 
 	iounmap(sport->port.membase);