linux-kernel - [PATCH 2/3] drivers/video: use dev_get

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Date:	Sun, 17 May 2009 11:29:00 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	adaplas@...il.com, linux-fbdev-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] drivers/video: use dev_get_drvdata

From: Julia Lawall <julia@...u.dk>

Eliminate direct accesses to the driver_data field.
cf 82ab13b26f15f49be45f15ccc96bfa0b81dfd015

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
struct device *dev;
expression E;
type T;
@@

- dev->driver_data = (T)E
+ dev_set_drvdata(dev, E)

@@
struct device *dev;
type T;
@@

- (T)dev->driver_data
+ dev_get_drvdata(dev)
// </smpl>

Signed-off-by: Julia Lawall <julia@...u.dk>

---
 drivers/video/omap/omapfb_main.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff -u -p a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -1250,7 +1250,7 @@ static struct fb_ops omapfb_ops = {
 static ssize_t omapfb_show_caps_num(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
-	struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 	int plane;
 	size_t size;
 	struct omapfb_caps caps;
@@ -1270,7 +1270,7 @@ static ssize_t omapfb_show_caps_num(stru
 static ssize_t omapfb_show_caps_text(struct device *dev,
 				     struct device_attribute *attr, char *buf)
 {
-	struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 	int i;
 	struct omapfb_caps caps;
 	int plane;
@@ -1317,7 +1317,7 @@ static DEVICE_ATTR(caps_text, 0444, omap
 static ssize_t omapfb_show_panel_name(struct device *dev,
 				      struct device_attribute *attr, char *buf)
 {
-	struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
 }
@@ -1326,7 +1326,7 @@ static ssize_t omapfb_show_bklight_level
 					 struct device_attribute *attr,
 					 char *buf)
 {
-	struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 	int r;
 
 	if (fbdev->panel->get_bklight_level) {
@@ -1341,7 +1341,7 @@ static ssize_t omapfb_store_bklight_leve
 					  struct device_attribute *attr,
 					  const char *buf, size_t size)
 {
-	struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 	int r;
 
 	if (fbdev->panel->set_bklight_level) {
@@ -1360,7 +1360,7 @@ static ssize_t omapfb_store_bklight_leve
 static ssize_t omapfb_show_bklight_max(struct device *dev,
 				       struct device_attribute *attr, char *buf)
 {
-	struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 	int r;
 
 	if (fbdev->panel->get_bklight_level) {
@@ -1393,7 +1393,7 @@ static struct attribute_group panel_attr
 static ssize_t omapfb_show_ctrl_name(struct device *dev,
 				     struct device_attribute *attr, char *buf)
 {
-	struct omapfb_device *fbdev = (struct omapfb_device *)dev->driver_data;
+	struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
 }
--
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