From: Bartosz Golaszewski <brgl@bgdev.pl> To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>, "David S . Miller" <davem@davemloft.net>, Mauro Carvalho Chehab <mchehab+samsung@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andrew Morton <akpm@linux-foundation.org>, Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>, Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>, David Lechner <david@lechnology.com>, Boris Brezillon <boris.brezillon@bootlin.com>, Andrew Lunn <andrew@lunn.ch>, Alban Bedel <albeu@free.fr>, Maxime Ripard <maxime.ripard@bootlin.com>, Chen-Yu Tsai <wens@csie.org> Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bartosz Golaszewski <bgolaszewski@baylibre.com> Subject: [PATCH v3 10/21] nvmem: change the signature of nvmem_unregister() Date: Wed, 12 Sep 2018 09:51:18 +0200 [thread overview] Message-ID: <20180912075129.25185-11-brgl@bgdev.pl> (raw) In-Reply-To: <20180912075129.25185-1-brgl@bgdev.pl> From: Bartosz Golaszewski <bgolaszewski@baylibre.com> We switched the nvmem framework to using kref instead of manually checking the current number of users in nvmem_unregister() so this function can no longer fail. We also converted all remaining users that still checked the return value of nvmem_unregister() to using devm_nvmem_register(). Make the routine return void. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> --- drivers/nvmem/core.c | 8 ++------ include/linux/nvmem-provider.h | 9 +++------ 2 files changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 552ffedce38e..c950d54bb69d 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -553,20 +553,16 @@ static void nvmem_device_release(struct kref *kref) * nvmem_unregister() - Unregister previously registered nvmem device * * @nvmem: Pointer to previously registered nvmem device. - * - * Return: Will be an negative on error or a zero on success. */ -int nvmem_unregister(struct nvmem_device *nvmem) +void nvmem_unregister(struct nvmem_device *nvmem) { kref_put(&nvmem->refcnt, nvmem_device_release); - - return 0; } EXPORT_SYMBOL_GPL(nvmem_unregister); static void devm_nvmem_release(struct device *dev, void *res) { - WARN_ON(nvmem_unregister(*(struct nvmem_device **)res)); + nvmem_unregister(*(struct nvmem_device **)res); } /** diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h index 24def6ad09bb..033c9c3c80a6 100644 --- a/include/linux/nvmem-provider.h +++ b/include/linux/nvmem-provider.h @@ -70,7 +70,7 @@ struct nvmem_config { #if IS_ENABLED(CONFIG_NVMEM) struct nvmem_device *nvmem_register(const struct nvmem_config *cfg); -int nvmem_unregister(struct nvmem_device *nvmem); +void nvmem_unregister(struct nvmem_device *nvmem); struct nvmem_device *devm_nvmem_register(struct device *dev, const struct nvmem_config *cfg); @@ -87,10 +87,7 @@ static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c) return ERR_PTR(-ENOSYS); } -static inline int nvmem_unregister(struct nvmem_device *nvmem) -{ - return -ENOSYS; -} +static inline void nvmem_unregister(struct nvmem_device *nvmem) {} static inline struct nvmem_device * devm_nvmem_register(struct device *dev, const struct nvmem_config *c) @@ -101,7 +98,7 @@ devm_nvmem_register(struct device *dev, const struct nvmem_config *c) static inline int devm_nvmem_unregister(struct device *dev, struct nvmem_device *nvmem) { - return nvmem_unregister(nvmem); + return ERR_PTR(-ENOSYS); } -- 2.18.0
WARNING: multiple messages have this Message-ID (diff)
From: brgl@bgdev.pl (Bartosz Golaszewski) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 10/21] nvmem: change the signature of nvmem_unregister() Date: Wed, 12 Sep 2018 09:51:18 +0200 [thread overview] Message-ID: <20180912075129.25185-11-brgl@bgdev.pl> (raw) In-Reply-To: <20180912075129.25185-1-brgl@bgdev.pl> From: Bartosz Golaszewski <bgolaszewski@baylibre.com> We switched the nvmem framework to using kref instead of manually checking the current number of users in nvmem_unregister() so this function can no longer fail. We also converted all remaining users that still checked the return value of nvmem_unregister() to using devm_nvmem_register(). Make the routine return void. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> --- drivers/nvmem/core.c | 8 ++------ include/linux/nvmem-provider.h | 9 +++------ 2 files changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 552ffedce38e..c950d54bb69d 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -553,20 +553,16 @@ static void nvmem_device_release(struct kref *kref) * nvmem_unregister() - Unregister previously registered nvmem device * * @nvmem: Pointer to previously registered nvmem device. - * - * Return: Will be an negative on error or a zero on success. */ -int nvmem_unregister(struct nvmem_device *nvmem) +void nvmem_unregister(struct nvmem_device *nvmem) { kref_put(&nvmem->refcnt, nvmem_device_release); - - return 0; } EXPORT_SYMBOL_GPL(nvmem_unregister); static void devm_nvmem_release(struct device *dev, void *res) { - WARN_ON(nvmem_unregister(*(struct nvmem_device **)res)); + nvmem_unregister(*(struct nvmem_device **)res); } /** diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h index 24def6ad09bb..033c9c3c80a6 100644 --- a/include/linux/nvmem-provider.h +++ b/include/linux/nvmem-provider.h @@ -70,7 +70,7 @@ struct nvmem_config { #if IS_ENABLED(CONFIG_NVMEM) struct nvmem_device *nvmem_register(const struct nvmem_config *cfg); -int nvmem_unregister(struct nvmem_device *nvmem); +void nvmem_unregister(struct nvmem_device *nvmem); struct nvmem_device *devm_nvmem_register(struct device *dev, const struct nvmem_config *cfg); @@ -87,10 +87,7 @@ static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c) return ERR_PTR(-ENOSYS); } -static inline int nvmem_unregister(struct nvmem_device *nvmem) -{ - return -ENOSYS; -} +static inline void nvmem_unregister(struct nvmem_device *nvmem) {} static inline struct nvmem_device * devm_nvmem_register(struct device *dev, const struct nvmem_config *c) @@ -101,7 +98,7 @@ devm_nvmem_register(struct device *dev, const struct nvmem_config *c) static inline int devm_nvmem_unregister(struct device *dev, struct nvmem_device *nvmem) { - return nvmem_unregister(nvmem); + return ERR_PTR(-ENOSYS); } -- 2.18.0
next prev parent reply other threads:[~2018-09-12 7:52 UTC|newest] Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-09-12 7:51 [PATCH v3 00/21] nvmem: rework of the subsystem for non-DT users Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 01/21] nvmem: provide nvmem_dev_name() Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 02/21] nvmem: remove the name field from struct nvmem_device Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 03/21] nvmem: use list_for_each_entry_safe in nvmem_device_remove_all_cells() Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 04/21] nvmem: remove a stray newline Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 05/21] nvmem: check the return value of nvmem_add_cells() Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 06/21] nvmem: use kref Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 07/21] nvmem: lpc18xx_eeprom: use devm_nvmem_register() Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 08/21] nvmem: sunxi_sid: " Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-13 1:38 ` kbuild test robot 2018-09-13 1:38 ` kbuild test robot 2018-09-13 8:39 ` Bartosz Golaszewski 2018-09-13 8:39 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 09/21] nvmem: mxs-ocotp: " Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski [this message] 2018-09-12 7:51 ` [PATCH v3 10/21] nvmem: change the signature of nvmem_unregister() Bartosz Golaszewski 2018-09-13 0:34 ` kbuild test robot 2018-09-13 0:34 ` kbuild test robot 2018-09-13 1:46 ` kbuild test robot 2018-09-13 1:46 ` kbuild test robot 2018-09-12 7:51 ` [PATCH v3 11/21] nvmem: remove the global cell list Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 12/21] nvmem: add support for cell info Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 13/21] nvmem: resolve cells from DT at registration time Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 14/21] nvmem: add support for cell lookups from machine code Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 15/21] Documentation: nvmem: document cell tables and lookup entries Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 16/21] nvmem: add a notifier chain Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 9:33 ` Bartosz Golaszewski 2018-09-12 9:33 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 17/21] nvmem: use SPDX license identifiers Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 18/21] nvmem: make the naming of arguments in nvmem_cell_get() consistent Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 19/21] nvmem: use EOPNOTSUPP instead of ENOSYS Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 20/21] nvmem: fix commenting style Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-12 7:51 ` [PATCH v3 21/21] nvmem: use octal permissions instead of constants Bartosz Golaszewski 2018-09-12 7:51 ` Bartosz Golaszewski 2018-09-14 14:43 ` [PATCH v3 00/21] nvmem: rework of the subsystem for non-DT users Bartosz Golaszewski 2018-09-14 14:43 ` Bartosz Golaszewski
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