From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Aaro Koskinen <aaro.koskinen@iki.fi>,
Janusz Krzysztofik <jmkrzyszt@gmail.com>,
Tony Lindgren <tony@atomide.com>,
Russell King <linux@armlinux.org.uk>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@bgdev.pl>,
Dipen Patel <dipenp@nvidia.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Hans de Goede <hdegoede@redhat.com>,
Mark Gross <markgross@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-acpi@vger.kernel.org, timestamp@lists.linux.dev,
linux-tegra@vger.kernel.org, platform-driver-x86@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: [PATCH 16/21] gpio: of: correct notifier return codes
Date: Tue, 5 Sep 2023 20:53:04 +0200 [thread overview]
Message-ID: <20230905185309.131295-17-brgl@bgdev.pl> (raw)
In-Reply-To: <20230905185309.131295-1-brgl@bgdev.pl>
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
According to the comments in linux/notifier.h, the code to return when a
notifications is "not for us" is NOTIFY_DONE, not NOTIFY_OK.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
drivers/gpio/gpiolib-of.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 531faabead0f..5515f32cf19b 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -834,14 +834,14 @@ static int of_gpio_notify(struct notifier_block *nb, unsigned long action,
switch (of_reconfig_get_state_change(action, arg)) {
case OF_RECONFIG_CHANGE_ADD:
if (!of_property_read_bool(rd->dn, "gpio-hog"))
- return NOTIFY_OK; /* not for us */
+ return NOTIFY_DONE; /* not for us */
if (of_node_test_and_set_flag(rd->dn, OF_POPULATED))
- return NOTIFY_OK;
+ return NOTIFY_DONE;
chip = of_find_gpiochip_by_node(rd->dn->parent);
if (chip == NULL)
- return NOTIFY_OK; /* not for us */
+ return NOTIFY_DONE; /* not for us */
ret = of_gpiochip_add_hog(chip, rd->dn);
if (ret < 0) {
@@ -850,22 +850,22 @@ static int of_gpio_notify(struct notifier_block *nb, unsigned long action,
of_node_clear_flag(rd->dn, OF_POPULATED);
return notifier_from_errno(ret);
}
- break;
+ return NOTIFY_OK;
case OF_RECONFIG_CHANGE_REMOVE:
if (!of_node_check_flag(rd->dn, OF_POPULATED))
- return NOTIFY_OK; /* already depopulated */
+ return NOTIFY_DONE; /* already depopulated */
chip = of_find_gpiochip_by_node(rd->dn->parent);
if (chip == NULL)
- return NOTIFY_OK; /* not for us */
+ return NOTIFY_DONE; /* not for us */
of_gpiochip_remove_hog(chip, rd->dn);
of_node_clear_flag(rd->dn, OF_POPULATED);
- break;
+ return NOTIFY_OK;
}
- return NOTIFY_OK;
+ return NOTIFY_DONE;
}
struct notifier_block gpio_of_notifier = {
--
2.39.2
next prev parent reply other threads:[~2023-09-05 18:55 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-05 18:52 [PATCH 00/21] gpio: convert users to gpio_device_find() and remove gpiochip_find() Bartosz Golaszewski
2023-09-05 18:52 ` [PATCH 01/21] gpiolib: make gpio_device_get() and gpio_device_put() public Bartosz Golaszewski
2023-09-07 7:02 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 02/21] gpiolib: provide gpio_device_find() Bartosz Golaszewski
2023-09-06 14:10 ` Andy Shevchenko
2023-09-11 13:14 ` Bartosz Golaszewski
2023-09-07 7:05 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 03/21] gpiolib: provide gpio_device_find_by_label() Bartosz Golaszewski
2023-09-06 14:13 ` Andy Shevchenko
2023-09-07 7:06 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 04/21] gpiolib: provide gpio_device_get_desc() Bartosz Golaszewski
2023-09-06 14:15 ` Andy Shevchenko
2023-09-07 7:07 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 05/21] gpiolib: add support for scope-based management to gpio_device Bartosz Golaszewski
2023-09-07 7:09 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 06/21] gpiolib: provide gpiod_to_device() Bartosz Golaszewski
2023-09-06 14:17 ` Andy Shevchenko
2023-09-07 7:10 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 07/21] gpiolib: provide gpio_device_get_base() Bartosz Golaszewski
2023-09-07 7:17 ` Linus Walleij
2023-09-07 7:57 ` Bartosz Golaszewski
2023-10-03 20:32 ` Dipen Patel
2023-09-05 18:52 ` [PATCH 08/21] gpio: acpi: provide acpi_gpio_device_free_interrupts() Bartosz Golaszewski
2023-09-06 7:10 ` Mika Westerberg
2023-09-05 18:52 ` [PATCH 09/21] gpiolib: reluctantly provide gpio_device_get_chip() Bartosz Golaszewski
2023-09-07 7:19 ` Linus Walleij
2023-09-05 18:52 ` [PATCH 10/21] gpiolib: replace find_chip_by_name() with gpio_device_find_by_label() Bartosz Golaszewski
2023-09-06 14:23 ` Andy Shevchenko
2023-09-07 7:20 ` Linus Walleij
2023-09-05 18:52 ` [RFT PATCH 11/21] platform: x86: android-tablets: don't access GPIOLIB private members Bartosz Golaszewski
2023-09-06 13:01 ` Hans de Goede
2023-09-06 14:27 ` Bartosz Golaszewski
2023-09-09 14:17 ` Hans de Goede
2023-09-11 10:05 ` Andy Shevchenko
2023-09-05 18:53 ` [PATCH 12/21] hte: allow building modules with COMPILE_TEST enabled Bartosz Golaszewski
2023-09-07 7:22 ` Linus Walleij
2023-09-07 7:31 ` Bartosz Golaszewski
2023-09-05 18:53 ` [PATCH 13/21] hte: tegra194: improve the GPIO-related comment Bartosz Golaszewski
2023-09-07 7:24 ` Linus Walleij
2023-09-05 18:53 ` [RFT PATCH 14/21] hte: tegra194: don't access struct gpio_chip Bartosz Golaszewski
2023-09-06 14:47 ` Andy Shevchenko
2023-09-07 7:28 ` Linus Walleij
2023-10-04 12:00 ` Bartosz Golaszewski
2023-10-04 20:30 ` Dipen Patel
2023-10-04 20:33 ` Dipen Patel
2023-10-04 22:54 ` Dipen Patel
2023-10-04 23:51 ` Dipen Patel
2023-10-05 13:48 ` Bartosz Golaszewski
2023-10-05 18:12 ` Dipen Patel
2023-10-05 19:05 ` Bartosz Golaszewski
2023-10-05 19:43 ` Dipen Patel
2023-10-05 19:47 ` Bartosz Golaszewski
2023-10-09 6:48 ` Bartosz Golaszewski
2023-10-09 16:34 ` Dipen Patel
2023-10-09 17:46 ` Dipen Patel
2023-09-05 18:53 ` [RFT PATCH 15/21] arm: omap1: ams-delta: stop using gpiochip_find() Bartosz Golaszewski
2023-09-06 14:48 ` Andy Shevchenko
2023-09-06 14:56 ` Bartosz Golaszewski
2023-09-07 7:31 ` Linus Walleij
2023-09-08 18:07 ` Janusz Krzysztofik
2023-09-11 11:09 ` Bartosz Golaszewski
2023-09-11 12:50 ` Tony Lindgren
2023-09-11 17:17 ` Janusz Krzysztofik
2023-09-07 7:35 ` Linus Walleij
2023-09-07 7:57 ` Bartosz Golaszewski
2023-10-04 11:59 ` Bartosz Golaszewski
2023-09-05 18:53 ` Bartosz Golaszewski [this message]
2023-09-07 7:36 ` [PATCH 16/21] gpio: of: correct notifier return codes Linus Walleij
2023-09-05 18:53 ` [PATCH 17/21] gpio: of: replace gpiochip_find_* with gpio_device_find_* Bartosz Golaszewski
2023-09-07 7:37 ` Linus Walleij
2023-09-07 7:38 ` Linus Walleij
2023-09-05 18:53 ` [PATCH 18/21] gpio: acpi: replace gpiochip_find() with gpio_device_find() Bartosz Golaszewski
2023-09-06 14:50 ` Andy Shevchenko
2023-09-07 7:39 ` Linus Walleij
2023-09-05 18:53 ` [PATCH 19/21] gpio: swnode: replace gpiochip_find() with gpio_device_find_by_label() Bartosz Golaszewski
2023-09-06 14:52 ` Andy Shevchenko
2023-09-07 7:40 ` Linus Walleij
2024-01-24 14:59 ` Paul Cercueil
2024-01-24 15:04 ` Bartosz Golaszewski
2024-01-24 15:11 ` Paul Cercueil
2024-01-24 15:18 ` Paul Cercueil
2023-09-05 18:53 ` [PATCH 20/21] gpio: sysfs: drop the mention of gpiochip_find() from sysfs code Bartosz Golaszewski
2023-09-07 7:40 ` Linus Walleij
2023-09-05 18:53 ` [PATCH 21/21] gpiolib: remove gpiochip_find() Bartosz Golaszewski
2023-09-06 14:53 ` Andy Shevchenko
2023-09-07 7:42 ` Linus Walleij
2023-09-07 7:00 ` [PATCH 00/21] gpio: convert users to gpio_device_find() and " Linus Walleij
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