[PATCH 3/3] driver:gpio remove all usage of gpio_remove retval in driver

From: abdoulaye berthe
Date: Sat Jul 12 2014 - 16:30:52 EST

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@xxxxxxxxx>
---
arch/arm/common/scoop.c | 10 ++--------
arch/mips/txx9/generic/setup.c | 4 ++--
arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c | 3 ++-
arch/sh/boards/mach-x3proto/gpio.c | 6 ++----
drivers/bcma/driver_gpio.c | 3 ++-
drivers/hid/hid-cp2112.c | 6 ++----
drivers/input/keyboard/adp5588-keys.c | 4 +---
drivers/input/keyboard/adp5589-keys.c | 4 +---
drivers/input/touchscreen/ad7879.c | 10 +++-------
drivers/leds/leds-pca9532.c | 10 ++--------
drivers/leds/leds-tca6507.c | 7 ++-----
drivers/media/dvb-frontends/cxd2820r_core.c | 10 +++-------
drivers/mfd/asic3.c | 3 ++-
drivers/mfd/htc-i2cpld.c | 8 +-------
drivers/mfd/sm501.c | 17 +++--------------
drivers/mfd/tc6393xb.c | 13 ++++---------
drivers/mfd/ucb1x00-core.c | 8 ++------
drivers/pinctrl/pinctrl-abx500.c | 15 +++------------
drivers/pinctrl/pinctrl-exynos5440.c | 6 +-----
drivers/pinctrl/pinctrl-msm.c | 10 +++-------
drivers/pinctrl/pinctrl-nomadik.c | 2 +-
drivers/pinctrl/pinctrl-samsung.c | 14 ++++----------
drivers/platform/x86/intel_pmic_gpio.c | 3 +--
drivers/ssb/driver_gpio.c | 3 ++-
drivers/staging/vme/devices/vme_pio2_gpio.c | 4 +---
drivers/tty/serial/max310x.c | 10 ++++------
drivers/video/fbdev/via/via-gpio.c | 10 +++-------
sound/soc/codecs/wm5100.c | 5 +----
sound/soc/codecs/wm8903.c | 6 +-----
sound/soc/codecs/wm8962.c | 5 +----
sound/soc/codecs/wm8996.c | 6 +-----
31 files changed, 63 insertions(+), 162 deletions(-)

diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index 6ef146e..5881c9c 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -244,18 +244,12 @@ err_ioremap:
static int scoop_remove(struct platform_device *pdev)
{
struct scoop_dev *sdev = platform_get_drvdata(pdev);
- int ret;

if (!sdev)
return -EINVAL;

- if (sdev->gpio.base != -1) {
- ret = gpiochip_remove(&sdev->gpio);
- if (ret) {
- dev_err(&pdev->dev, "Can't remove gpio chip: %d\n", ret);
- return ret;
- }
- }
+ if (sdev->gpio.base != -1)
+ gpiochip_remove(&sdev->gpio);

platform_set_drvdata(pdev, NULL);
iounmap(sdev->base);
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index dd2cf25..49be896 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -789,11 +789,11 @@ void __init txx9_iocled_init(unsigned long baseaddr,
if (platform_device_add(pdev))
goto out_pdev;
return;
+
out_pdev:
platform_device_put(pdev);
out_gpio:
- if (gpiochip_remove(&iocled->chip))
- return;
+ gpiochip_remove(&iocled->chip);
out_unmap:
iounmap(iocled->mmioaddr);
out_free:
diff --git a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
index e238b6a..7399702 100644
--- a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
+++ b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
@@ -141,7 +141,8 @@ static int mcu_gpiochip_add(struct mcu *mcu)

static int mcu_gpiochip_remove(struct mcu *mcu)
{
- return gpiochip_remove(&mcu->gc);
+ gpiochip_remove(&mcu->gc);
+ return 0;
}

static int mcu_probe(struct i2c_client *client, const struct i2c_device_id *id)
diff --git a/arch/sh/boards/mach-x3proto/gpio.c b/arch/sh/boards/mach-x3proto/gpio.c
index 3ea65e9..f035a7a 100644
--- a/arch/sh/boards/mach-x3proto/gpio.c
+++ b/arch/sh/boards/mach-x3proto/gpio.c
@@ -128,10 +128,8 @@ int __init x3proto_gpio_setup(void)
return 0;

err_irq:
- ret = gpiochip_remove(&x3proto_gpio_chip);
- if (unlikely(ret))
- pr_err("Failed deregistering GPIO\n");
-
+ gpiochip_remove(&x3proto_gpio_chip);
+ ret = 0;
err_gpio:
synchronize_irq(ilsel);

diff --git a/drivers/bcma/driver_gpio.c b/drivers/bcma/driver_gpio.c
index d7f81ad..7dd70a7 100644
--- a/drivers/bcma/driver_gpio.c
+++ b/drivers/bcma/driver_gpio.c
@@ -250,5 +250,6 @@ int bcma_gpio_init(struct bcma_drv_cc *cc)
int bcma_gpio_unregister(struct bcma_drv_cc *cc)
{
bcma_gpio_irq_domain_exit(cc);
- return gpiochip_remove(&cc->gpio);
+ gpiochip_remove(&cc->gpio);
+ return 0;
}
diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
index 56be85a..a7f1b4b 100644
--- a/drivers/hid/hid-cp2112.c
+++ b/drivers/hid/hid-cp2112.c
@@ -964,8 +964,7 @@ static int cp2112_probe(struct hid_device *hdev, const struct hid_device_id *id)
return ret;

err_gpiochip_remove:
- if (gpiochip_remove(&dev->gc) < 0)
- hid_err(hdev, "error removing gpio chip\n");
+ gpiochip_remove(&dev->gc);
err_free_i2c:
i2c_del_adapter(&dev->adap);
err_free_dev:
@@ -984,8 +983,7 @@ static void cp2112_remove(struct hid_device *hdev)
struct cp2112_device *dev = hid_get_drvdata(hdev);

sysfs_remove_group(&hdev->dev.kobj, &cp2112_attr_group);
- if (gpiochip_remove(&dev->gc))
- hid_err(hdev, "unable to remove gpio chip\n");
+ gpiochip_remove(&dev->gc);
i2c_del_adapter(&dev->adap);
/* i2c_del_adapter has finished removing all i2c devices from our
* adapter. Well behaved devices should no longer call our cp2112_xfer
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..1eb9d3c 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -470,14 +470,10 @@ 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,
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index 4a0e786..5a6363d 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -319,14 +319,8 @@ static int pca9532_destroy_devices(struct pca9532_data *data, int n_devs)
}

#ifdef CONFIG_LEDS_PCA9532_GPIO
- if (data->gpio.dev) {
- int err = gpiochip_remove(&data->gpio);
- if (err) {
- dev_err(&data->client->dev, "%s failed, %d\n",
- "gpiochip_remove()", err);
- return err;
- }
- }
+ if (data->gpio.dev)
+ gpiochip_remove(&data->gpio);
#endif

return 0;
diff --git a/drivers/leds/leds-tca6507.c b/drivers/leds/leds-tca6507.c
index 3d9e267..20fa8e7 100644
--- a/drivers/leds/leds-tca6507.c
+++ b/drivers/leds/leds-tca6507.c
@@ -667,11 +667,8 @@ static int tca6507_probe_gpios(struct i2c_client *client,

static void tca6507_remove_gpio(struct tca6507_chip *tca)
{
- if (tca->gpio.ngpio) {
- int err = gpiochip_remove(&tca->gpio);
- dev_err(&tca->client->dev, "%s failed, %d\n",
- "gpiochip_remove()", err);
- }
+ if (tca->gpio.ngpio)
+ gpiochip_remove(&tca->gpio);
}
#else /* CONFIG_GPIOLIB */
static int tca6507_probe_gpios(struct i2c_client *client,
diff --git a/drivers/media/dvb-frontends/cxd2820r_core.c b/drivers/media/dvb-frontends/cxd2820r_core.c
index 03930d5..51ef8931 100644
--- a/drivers/media/dvb-frontends/cxd2820r_core.c
+++ b/drivers/media/dvb-frontends/cxd2820r_core.c
@@ -584,18 +584,14 @@ static int cxd2820r_get_frontend_algo(struct dvb_frontend *fe)
static void cxd2820r_release(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
- int uninitialized_var(ret); /* silence compiler warning */

dev_dbg(&priv->i2c->dev, "%s\n", __func__);

#ifdef CONFIG_GPIOLIB
/* remove GPIOs */
- if (priv->gpio_chip.label) {
- ret = gpiochip_remove(&priv->gpio_chip);
- if (ret)
- dev_err(&priv->i2c->dev, "%s: gpiochip_remove() " \
- "failed=%d\n", KBUILD_MODNAME, ret);
- }
+ if (priv->gpio_chip.label)
+ gpiochip_remove(&priv->gpio_chip);
+
#endif
kfree(priv);
return;
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 9f6294f..8a968f9 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 d7b2a75..4306329 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -486,15 +486,9 @@ 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 81e6d09..02027b7 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 11c19e5..4fac16b 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 153d595..58ea9fd 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);
diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c
index 163da9c..7dc9804 100644
--- a/drivers/pinctrl/pinctrl-abx500.c
+++ b/drivers/pinctrl/pinctrl-abx500.c
@@ -1221,7 +1221,7 @@ static int abx500_gpio_probe(struct platform_device *pdev)
const struct of_device_id *match;
struct abx500_pinctrl *pct;
unsigned int id = -1;
- int ret, err;
+ int ret;
int i;

if (!np) {
@@ -1313,10 +1313,7 @@ static int abx500_gpio_probe(struct platform_device *pdev)
return 0;

out_rem_chip:
- err = gpiochip_remove(&pct->chip);
- if (err)
- dev_info(&pdev->dev, "failed to remove gpiochip\n");
-
+ gpiochip_remove(&pct->chip);
return ret;
}

@@ -1327,14 +1324,8 @@ out_rem_chip:
static int abx500_gpio_remove(struct platform_device *pdev)
{
struct abx500_pinctrl *pct = platform_get_drvdata(pdev);
- int ret;

- ret = gpiochip_remove(&pct->chip);
- if (ret < 0) {
- dev_err(pct->dev, "unable to remove gpiochip: %d\n",
- ret);
- return ret;
- }
+ gpiochip_remove(&pct->chip);

return 0;
}
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index 8fe2ab0..648c600 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -881,11 +881,7 @@ static int exynos5440_gpiolib_register(struct platform_device *pdev,
static int exynos5440_gpiolib_unregister(struct platform_device *pdev,
struct exynos5440_pinctrl_priv_data *priv)
{
- int ret = gpiochip_remove(priv->gc);
- if (ret) {
- dev_err(&pdev->dev, "gpio chip remove failed\n");
- return ret;
- }
+ gpiochip_remove(priv->gc);
return 0;
}

diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c
index df6dda4c..b4b941f 100644
--- a/drivers/pinctrl/pinctrl-msm.c
+++ b/drivers/pinctrl/pinctrl-msm.c
@@ -923,14 +923,10 @@ EXPORT_SYMBOL(msm_pinctrl_probe);
int msm_pinctrl_remove(struct platform_device *pdev)
{
struct msm_pinctrl *pctrl = platform_get_drvdata(pdev);
- int ret;
-
- ret = gpiochip_remove(&pctrl->chip);
- if (ret) {
- dev_err(&pdev->dev, "Failed to remove gpiochip\n");
- return ret;
- }

+ gpiochip_remove(&pctrl->chip);
+ irq_set_chained_handler(pctrl->irq, NULL);
+ irq_domain_remove(pctrl->domain);
pinctrl_unregister(pctrl->pctrl);

return 0;
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 8f6f16e..98c5ce2 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -1261,7 +1261,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
IRQ_TYPE_EDGE_FALLING);
if (ret) {
dev_err(&dev->dev, "could not add irqchip\n");
- ret = gpiochip_remove(&nmk_chip->chip);
+ gpiochip_remove(&nmk_chip->chip);
return -ENODEV;
}
/* Then register the chain on the parent IRQ */
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index 3e61d0f..99ec2fe 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -841,9 +841,7 @@ static int samsung_gpiolib_register(struct platform_device *pdev,

fail:
for (--i, --bank; i >= 0; --i, --bank)
- if (gpiochip_remove(&bank->gpio_chip))
- dev_err(&pdev->dev, "gpio chip %s remove failed\n",
- bank->gpio_chip.label);
+ gpiochip_remove(&bank->gpio_chip);
return ret;
}

@@ -853,16 +851,12 @@ static int samsung_gpiolib_unregister(struct platform_device *pdev,
{
struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
struct samsung_pin_bank *bank = ctrl->pin_banks;
- int ret = 0;
int i;

- for (i = 0; !ret && i < ctrl->nr_banks; ++i, ++bank)
- ret = gpiochip_remove(&bank->gpio_chip);
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank)
+ gpiochip_remove(&bank->gpio_chip);

- if (ret)
- dev_err(&pdev->dev, "gpio chip remove failed\n");
-
- return ret;
+ return 0;
}

static const struct of_device_id samsung_pinctrl_dt_match[];
diff --git a/drivers/platform/x86/intel_pmic_gpio.c b/drivers/platform/x86/intel_pmic_gpio.c
index 40929e4..04fed00 100644
--- a/drivers/platform/x86/intel_pmic_gpio.c
+++ b/drivers/platform/x86/intel_pmic_gpio.c
@@ -301,8 +301,7 @@ static int platform_pmic_gpio_probe(struct platform_device *pdev)
return 0;

fail_request_irq:
- if (gpiochip_remove(&pg->chip))
- pr_err("gpiochip_remove failed\n");
+ gpiochip_remove(&pg->chip);
err:
iounmap(pg->gpiointr);
err2:
diff --git a/drivers/ssb/driver_gpio.c b/drivers/ssb/driver_gpio.c
index ba350d2..f92e266 100644
--- a/drivers/ssb/driver_gpio.c
+++ b/drivers/ssb/driver_gpio.c
@@ -475,7 +475,8 @@ int ssb_gpio_unregister(struct ssb_bus *bus)
{
if (ssb_chipco_available(&bus->chipco) ||
ssb_extif_available(&bus->extif)) {
- return gpiochip_remove(&bus->gpio);
+ gpiochip_remove(&bus->gpio);
+ return 0;
} else {
SSB_WARN_ON(1);
}
diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c
index 2a2d920..3068288 100644
--- a/drivers/staging/vme/devices/vme_pio2_gpio.c
+++ b/drivers/staging/vme/devices/vme_pio2_gpio.c
@@ -221,9 +221,7 @@ void pio2_gpio_exit(struct pio2_card *card)
{
const char *label = card->gc.label;

- if (gpiochip_remove(&(card->gc)))
- dev_err(&card->vdev->dev, "Failed to remove GPIO");
-
+ gpiochip_remove(&(card->gc));
kfree(label);
}

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 2a99d0c..740171b 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1249,7 +1249,7 @@ static int max310x_probe(struct device *dev, struct max310x_devtype *devtype,
mutex_destroy(&s->mutex);

#ifdef CONFIG_GPIOLIB
- WARN_ON(gpiochip_remove(&s->gpio));
+ gpiochip_remove(&s->gpio);

out_uart:
#endif
@@ -1264,12 +1264,10 @@ out_clk:
static int max310x_remove(struct device *dev)
{
struct max310x_port *s = dev_get_drvdata(dev);
- int i, ret = 0;
+ int i;

#ifdef CONFIG_GPIOLIB
- ret = gpiochip_remove(&s->gpio);
- if (ret)
- return ret;
+ gpiochip_remove(&s->gpio);
#endif

for (i = 0; i < s->uart.nr; i++) {
@@ -1283,7 +1281,7 @@ static int max310x_remove(struct device *dev)
uart_unregister_driver(&s->uart);
clk_disable_unprepare(s->clk);

- return ret;
+ return 0;
}

static const struct of_device_id __maybe_unused max310x_dt_ids[] = {
diff --git a/drivers/video/fbdev/via/via-gpio.c b/drivers/video/fbdev/via/via-gpio.c
index e408679..6f433b8 100644
--- a/drivers/video/fbdev/via/via-gpio.c
+++ b/drivers/video/fbdev/via/via-gpio.c
@@ -270,7 +270,7 @@ static int viafb_gpio_probe(struct platform_device *platdev)
static int viafb_gpio_remove(struct platform_device *platdev)
{
unsigned long flags;
- int ret = 0, i;
+ int i;

#ifdef CONFIG_PM
viafb_pm_unregister(&viafb_gpio_pm_hooks);
@@ -280,11 +280,7 @@ static int viafb_gpio_remove(struct platform_device *platdev)
* Get unregistered.
*/
if (viafb_gpio_config.gpio_chip.ngpio > 0) {
- ret = gpiochip_remove(&viafb_gpio_config.gpio_chip);
- if (ret) { /* Somebody still using it? */
- printk(KERN_ERR "Viafb: GPIO remove failed\n");
- return ret;
- }
+ gpiochip_remove(&viafb_gpio_config.gpio_chip);
}
/*
* Disable the ports.
@@ -294,7 +290,7 @@ static int viafb_gpio_remove(struct platform_device *platdev)
viafb_gpio_disable(viafb_gpio_config.active_gpios[i]);
viafb_gpio_config.gpio_chip.ngpio = 0;
spin_unlock_irqrestore(&viafb_gpio_config.vdev->reg_lock, flags);
- return ret;
+ return 0;
}

static struct platform_driver via_gpio_driver = {
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index 91a9ea2..a75b7c1 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -2320,11 +2320,8 @@ static void wm5100_init_gpio(struct i2c_client *i2c)
static void wm5100_free_gpio(struct i2c_client *i2c)
{
struct wm5100_priv *wm5100 = i2c_get_clientdata(i2c);
- int ret;

- ret = gpiochip_remove(&wm5100->gpio_chip);
- if (ret != 0)
- dev_err(&i2c->dev, "Failed to remove GPIOs: %d\n", ret);
+ gpiochip_remove(&wm5100->gpio_chip);
}
#else
static void wm5100_init_gpio(struct i2c_client *i2c)
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index b84940c..c87bc04 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1878,11 +1878,7 @@ static void wm8903_init_gpio(struct wm8903_priv *wm8903)

static void wm8903_free_gpio(struct wm8903_priv *wm8903)
{
- int ret;
-
- ret = gpiochip_remove(&wm8903->gpio_chip);
- if (ret != 0)
- dev_err(wm8903->dev, "Failed to remove GPIOs: %d\n", ret);
+ gpiochip_remove(&wm8903->gpio_chip);
}
#else
static void wm8903_init_gpio(struct wm8903_priv *wm8903)
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index ca2fda9..896650f 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3397,11 +3397,8 @@ static void wm8962_init_gpio(struct snd_soc_codec *codec)
static void wm8962_free_gpio(struct snd_soc_codec *codec)
{
struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
- int ret;

- ret = gpiochip_remove(&wm8962->gpio_chip);
- if (ret != 0)
- dev_err(codec->dev, "Failed to remove GPIOs: %d\n", ret);
+ gpiochip_remove(&wm8962->gpio_chip);
}
#else
static void wm8962_init_gpio(struct snd_soc_codec *codec)
diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index 6926633..35a2bb8 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -2220,11 +2220,7 @@ static void wm8996_init_gpio(struct wm8996_priv *wm8996)

static void wm8996_free_gpio(struct wm8996_priv *wm8996)
{
- int ret;
-
- ret = gpiochip_remove(&wm8996->gpio_chip);
- if (ret != 0)
- dev_err(wm8996->dev, "Failed to remove GPIOs: %d\n", ret);
+ gpiochip_remove(&wm8996->gpio_chip);
}
#else
static void wm8996_init_gpio(struct wm8996_priv *wm8996)
--
1.9.1

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