linux-kernel - [PATCH 1/2] input: remove use of gpiochip

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Date:	Tue, 30 Sep 2014 20:04:53 +0530
From:	Pramod Gurav <pramod.gurav@...rtplayin.com>
To:	linux-kernel@...r.kernel.org
Cc:	Pramod Gurav <pramod.gurav@...rtplayin.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: [PATCH 1/2] input: remove use of gpiochip_remove() retval

Get rid of using return value from gpiochip_remove() as it returns
void.

Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: Alexandre Courbot <gnurou@...il.com>
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: linux-input@...r.kernel.org
Cc: linux-gpio@...r.kernel.org

Signed-off-by: Pramod Gurav <pramod.gurav@...rtplayin.com>
---
 drivers/input/keyboard/adp5588-keys.c |    4 +---
 drivers/input/keyboard/adp5589-keys.c |    4 +---
 drivers/input/touchscreen/ad7879.c    |    9 ++-------
 3 files changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
index 5ef7fcf..b97ed44 100644
--- a/drivers/input/keyboard/adp5588-keys.c
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -251,9 +251,7 @@ static void adp5588_gpio_remove(struct adp5588_kpad *kpad)
 			dev_warn(dev, "teardown failed %d\n", error);
 	}
 
-	error = gpiochip_remove(&kpad->gc);
-	if (error)
-		dev_warn(dev, "gpiochip_remove failed %d\n", error);
+	gpiochip_remove(&kpad->gc);
 }
 #else
 static inline int adp5588_gpio_add(struct adp5588_kpad *kpad)
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index 6329549..a452677 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -567,9 +567,7 @@ static void adp5589_gpio_remove(struct adp5589_kpad *kpad)
 			dev_warn(dev, "teardown failed %d\n", error);
 	}
 
-	error = gpiochip_remove(&kpad->gc);
-	if (error)
-		dev_warn(dev, "gpiochip_remove failed %d\n", error);
+	gpiochip_remove(&kpad->gc);
 }
 #else
 static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index fce5906..ee3bb4d 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -470,14 +470,9 @@ static int ad7879_gpio_add(struct ad7879 *ts,
 static void ad7879_gpio_remove(struct ad7879 *ts)
 {
 	const struct ad7879_platform_data *pdata = dev_get_platdata(ts->dev);
-	int ret;
 
-	if (pdata->gpio_export) {
-		ret = gpiochip_remove(&ts->gc);
-		if (ret)
-			dev_err(ts->dev, "failed to remove gpio %d\n",
-				ts->gc.base);
-	}
+	if (pdata->gpio_export)
+		gpiochip_remove(&ts->gc);
 }
 #else
 static inline int ad7879_gpio_add(struct ad7879 *ts,
-- 
1.7.9.5

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