From: abdoulaye berthe <berthe.ab@gmail.com>
To: linus.walleij@linaro.org, gnurou@gmail.com, m@bues.ch,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-mips@linux-mips.org,
linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
linux-wireless@vger.kernel.org,
patches@opensource.wolfsonmicro.com, linux-input@vger.kernel.org,
linux-leds@vger.kernel.org, linux-media@vger.kernel.org,
linux-samsungsoc@vger.kernel.org, spear-devel@list.st.com,
platform-driver-x86@vger.kernel.org, netdev@vger.kernel.org,
devel@driverdev.osuosl.org
Cc: abdoulaye berthe <berthe.ab@gmail.com>
Subject: [PATCH 2/2] gpio: gpiolib: set gpiochip_remove retval to void
Date: Fri, 30 May 2014 13:30:54 +0200 [thread overview]
Message-ID: <1401449454-30895-2-git-send-email-berthe.ab@gmail.com> (raw)
In-Reply-To: <1401449454-30895-1-git-send-email-berthe.ab@gmail.com>
This avoids handling gpiochip remove error in device
remove handler.
Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com>
---
drivers/gpio/gpiolib.c | 24 +++++++-----------------
include/linux/gpio/driver.h | 2 +-
2 files changed, 8 insertions(+), 18 deletions(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index f48817d..022543f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1263,10 +1263,9 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip);
*
* A gpio_chip with any GPIOs still requested may not be removed.
*/
-int gpiochip_remove(struct gpio_chip *chip)
+void gpiochip_remove(struct gpio_chip *chip)
{
unsigned long flags;
- int status = 0;
unsigned id;
acpi_gpiochip_remove(chip);
@@ -1278,24 +1277,15 @@ int gpiochip_remove(struct gpio_chip *chip)
of_gpiochip_remove(chip);
for (id = 0; id < chip->ngpio; id++) {
- if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags)) {
- status = -EBUSY;
- break;
- }
- }
- if (status == 0) {
- for (id = 0; id < chip->ngpio; id++)
- chip->desc[id].chip = NULL;
-
- list_del(&chip->list);
+ if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags))
+ panic("gpio: removing gpiochip with gpios still requested\n");
}
+ for (id = 0; id < chip->ngpio; id++)
+ chip->desc[id].chip = NULL;
+ list_del(&chip->list);
spin_unlock_irqrestore(&gpio_lock, flags);
-
- if (status == 0)
- gpiochip_unexport(chip);
-
- return status;
+ gpiochip_unexport(chip);
}
EXPORT_SYMBOL_GPL(gpiochip_remove);
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 1827b43..72ed256 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -138,7 +138,7 @@ extern const char *gpiochip_is_requested(struct gpio_chip *chip,
/* add/remove chips */
extern int gpiochip_add(struct gpio_chip *chip);
-extern int __must_check gpiochip_remove(struct gpio_chip *chip);
+void gpiochip_remove(struct gpio_chip *chip);
extern struct gpio_chip *gpiochip_find(void *data,
int (*match)(struct gpio_chip *chip, void *data));
--
1.8.3.2
next prev parent reply other threads:[~2014-05-30 11:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-29 21:54 [PATCH] gpio: removes all usage of gpiochip_remove retval abdoulaye berthe
2014-05-29 22:14 ` David Daney
2014-05-29 23:16 ` abdoulaye berthe
2014-05-29 23:40 ` Stephen Rothwell
2014-05-30 11:30 ` [PATCH 1/2] " abdoulaye berthe
2014-05-30 11:30 ` abdoulaye berthe [this message]
2014-05-30 11:39 ` [PATCH 2/2] gpio: gpiolib: set gpiochip_remove retval to void Geert Uytterhoeven
2014-05-30 15:48 ` Ralf Baechle
2014-05-30 17:33 ` David Daney
2014-05-30 18:16 ` Lars-Peter Clausen
2014-05-30 23:29 ` Greg KH
2014-05-31 7:35 ` Lars-Peter Clausen
2014-05-31 12:19 ` Dan Carpenter
2014-06-08 23:18 ` Ben Dooks
2014-06-09 11:29 ` Lars-Peter Clausen
2014-05-29 23:25 ` [PATCH] gpio: removes all usage of gpiochip_remove retval Greg KH
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