linux-kernel - [PATCH] of_serial: remove driver_data direct access of struct device

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Date:	Mon, 4 May 2009 13:13:23 -0700
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Arnd Bergmann <arnd@...db.de>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Paul Mackerras <paulus@...ba.org>,
	Matthias Fuchs <mfuchs@...fu.de>
Cc:	Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] of_serial: remove driver_data direct access of struct
	device

From: Greg Kroah-Hartman <gregkh@...e.de>

In the near future, the driver core is going to not allow direct access
to the driver_data pointer in struct device.  Instead, the functions
dev_get_drvdata() and dev_set_drvdata() should be used.  These functions
have been around since the beginning, so are backwards compatible with
all older kernel versions.

Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Matthias Fuchs <mfuchs@...fu.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/serial/of_serial.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -122,7 +122,7 @@ static int __devinit of_platform_serial_
 
 	info->type = port_type;
 	info->line = ret;
-	ofdev->dev.driver_data = info;
+	dev_set_drvdata(&ofdev->dev, info);
 	return 0;
 out:
 	kfree(info);
@@ -135,7 +135,7 @@ out:
  */
 static int of_platform_serial_remove(struct of_device *ofdev)
 {
-	struct of_serial_info *info = ofdev->dev.driver_data;
+	struct of_serial_info *info = dev_get_drvdata(&ofdev->dev);
 	switch (info->type) {
 #ifdef CONFIG_SERIAL_8250
 	case PORT_8250 ... PORT_MAX_8250:
--
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