linux-kernel - [PATCH] extcon: Remove casting the return value which is a void pointer

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Date:	Mon, 09 Sep 2013 14:33:32 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'MyungJoo Ham' <myungjoo.ham@...sung.com>
Cc:	'Chanwoo Choi' <cw00.choi@...sung.com>,
	linux-kernel@...r.kernel.org, 'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH] extcon: Remove casting the return value which is a void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/extcon/extcon-class.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index 148382f..424788d 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -105,7 +105,7 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr,
 			  char *buf)
 {
 	int i, count = 0;
-	struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
+	struct extcon_dev *edev = dev_get_drvdata(dev);
 
 	if (edev->print_state) {
 		int ret = edev->print_state(edev, buf);
@@ -135,7 +135,7 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr,
 {
 	u32 state;
 	ssize_t ret = 0;
-	struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
+	struct extcon_dev *edev = dev_get_drvdata(dev);
 
 	ret = sscanf(buf, "0x%x", &state);
 	if (ret == 0)
@@ -153,7 +153,7 @@ static DEVICE_ATTR_RW(state);
 static ssize_t name_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
-	struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
+	struct extcon_dev *edev = dev_get_drvdata(dev);
 
 	/* Optional callback given by the user */
 	if (edev->print_name) {
@@ -470,7 +470,7 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
 			return -ENODEV;
 		class_dev_iter_init(&iter, extcon_class, NULL, NULL);
 		while ((dev = class_dev_iter_next(&iter))) {
-			extd = (struct extcon_dev *)dev_get_drvdata(dev);
+			extd = dev_get_drvdata(dev);
 
 			if (extcon_find_cable_index(extd, cable_name) < 0)
 				continue;
-- 
1.7.10.4


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