driver:gpio remove all usage of gpio_remove retval in driver

this remove all reference to gpio_remove retval in all driver
except pinctrl and gpio. the same thing is done for gpio and
pinctrl in two different patches.

Signed-off-by: Abdoulaye Berthe <berthe.ab@gmail.com>
Acked-by: Michael Büsch <m@bues.ch>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

5 files changed, 12 insertions, 37 deletions

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 9fc4186d4132..977bd3a3eed0 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -605,7 +605,8 @@ static int asic3_gpio_remove(struct platform_device *pdev)
 {
 	struct asic3 *asic = platform_get_drvdata(pdev);
 
-	return gpiochip_remove(&asic->gpio);
+	gpiochip_remove(&asic->gpio);
+	return 0;
 }
 
 static void asic3_clk_enable(struct asic3 *asic, struct asic3_clk *clk)
diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index b44f0203983b..eab3fb028447 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -481,15 +481,9 @@ static int htcpld_register_chip_gpio(
 
 	ret = gpiochip_add(&(chip->chip_in));
 	if (ret) {
-		int error;
-
 		dev_warn(dev, "Unable to register input GPIOs for 0x%x: %d\n",
 			 plat_chip_data->addr, ret);
-
-		error = gpiochip_remove(&(chip->chip_out));
-		if (error)
-			dev_warn(dev, "Error while trying to unregister gpio chip: %d\n", error);
-
+		gpiochip_remove(&(chip->chip_out));
 		return ret;
 	}
 
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 81e6d0932bf0..02027b7f1223 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1047,7 +1047,6 @@ static int sm501_register_gpio(struct sm501_devdata *sm)
 	struct sm501_gpio *gpio = &sm->gpio;
 	resource_size_t iobase = sm->io_res->start + SM501_GPIO;
 	int ret;
-	int tmp;
 
 	dev_dbg(sm->dev, "registering gpio block %08llx\n",
 		(unsigned long long)iobase);
@@ -1086,11 +1085,7 @@ static int sm501_register_gpio(struct sm501_devdata *sm)
 	return 0;
 
  err_low_chip:
-	tmp = gpiochip_remove(&gpio->low.gpio);
-	if (tmp) {
-		dev_err(sm->dev, "cannot remove low chip, cannot tidy up\n");
-		return ret;
-	}
+	gpiochip_remove(&gpio->low.gpio);
 
  err_mapped:
 	iounmap(gpio->regs);
@@ -1105,18 +1100,12 @@ static int sm501_register_gpio(struct sm501_devdata *sm)
 static void sm501_gpio_remove(struct sm501_devdata *sm)
 {
 	struct sm501_gpio *gpio = &sm->gpio;
-	int ret;
 
 	if (!sm->gpio.registered)
 		return;
 
-	ret = gpiochip_remove(&gpio->low.gpio);
-	if (ret)
-		dev_err(sm->dev, "cannot remove low chip, cannot tidy up\n");
-
-	ret = gpiochip_remove(&gpio->high.gpio);
-	if (ret)
-		dev_err(sm->dev, "cannot remove high chip, cannot tidy up\n");
+	gpiochip_remove(&gpio->low.gpio);
+	gpiochip_remove(&gpio->high.gpio);
 
 	iounmap(gpio->regs);
 	release_resource(gpio->regs_res);
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 11c19e538551..4fac16bcd732 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -607,7 +607,7 @@ static int tc6393xb_probe(struct platform_device *dev)
 	struct tc6393xb_platform_data *tcpd = dev_get_platdata(&dev->dev);
 	struct tc6393xb *tc6393xb;
 	struct resource *iomem, *rscr;
-	int ret, temp;
+	int ret;
 
 	iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
 	if (!iomem)
@@ -714,7 +714,7 @@ err_setup:
 
 err_gpio_add:
 	if (tc6393xb->gpio.base != -1)
-		temp = gpiochip_remove(&tc6393xb->gpio);
+		gpiochip_remove(&tc6393xb->gpio);
 	tcpd->disable(dev);
 err_enable:
 	clk_disable(tc6393xb->clk);
@@ -744,13 +744,8 @@ static int tc6393xb_remove(struct platform_device *dev)
 
 	tc6393xb_detach_irq(dev);
 
-	if (tc6393xb->gpio.base != -1) {
-		ret = gpiochip_remove(&tc6393xb->gpio);
-		if (ret) {
-			dev_err(&dev->dev, "Can't remove gpio chip: %d\n", ret);
-			return ret;
-		}
-	}
+	if (tc6393xb->gpio.base != -1)
+		gpiochip_remove(&tc6393xb->gpio);
 
 	ret = tcpd->disable(dev);
 	clk_disable(tc6393xb->clk);
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index 153d595afaac..58ea9fdd3a15 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -621,7 +621,6 @@ static void ucb1x00_remove(struct mcp *mcp)
 	struct ucb1x00_plat_data *pdata = mcp->attached_device.platform_data;
 	struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
 	struct list_head *l, *n;
-	int ret;
 
 	mutex_lock(&ucb1x00_mutex);
 	list_del(&ucb->node);
@@ -631,11 +630,8 @@ static void ucb1x00_remove(struct mcp *mcp)
 	}
 	mutex_unlock(&ucb1x00_mutex);
 
-	if (ucb->gpio.base != -1) {
-		ret = gpiochip_remove(&ucb->gpio);
-		if (ret)
-			dev_err(&ucb->dev, "Can't remove gpio chip: %d\n", ret);
-	}
+	if (ucb->gpio.base != -1)
+		gpiochip_remove(&ucb->gpio);
 
 	irq_set_chained_handler(ucb->irq, NULL);
 	irq_free_descs(ucb->irq_base, 16);