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Wed, 05 Jun 2024 11:00:34 -0700 (PDT) Date: Wed, 5 Jun 2024 17:59:52 +0000 In-Reply-To: <20240605175953.2613260-1-joychakr@google.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240605175953.2613260-1-joychakr@google.com> X-Mailer: git-send-email 2.45.1.467.gbab1589fc0-goog Message-ID: <20240605175953.2613260-9-joychakr@google.com> Subject: [PATCH v1 08/17] misc: eeprom: 93xx46: Change nvmem reg_read/write return type From: Joy Chakraborty To: Srinivas Kandagatla , Greg Kroah-Hartman , AngeloGioacchino Del Regno , Lars-Peter Clausen , Sakari Ailus , Bingbu Cao , Zhihao Cheng , Jerome Brunet , Martin Blumenstingl Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-media@vger.kernel.org, linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org, linux-mtd@lists.infradead.org, linux-rtc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, manugautam@google.com, Joy Chakraborty Change nvmem read/write function definition return type to ssize_t. Signed-off-by: Joy Chakraborty --- drivers/misc/eeprom/eeprom_93xx46.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c index 45c8ae0db8f9..5d618a13fe5a 100644 --- a/drivers/misc/eeprom/eeprom_93xx46.c +++ b/drivers/misc/eeprom/eeprom_93xx46.c @@ -79,10 +79,11 @@ static inline bool has_quirk_extra_read_cycle(struct eeprom_93xx46_dev *edev) return edev->pdata->quirks & EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE; } -static int eeprom_93xx46_read(void *priv, unsigned int off, - void *val, size_t count) +static ssize_t eeprom_93xx46_read(void *priv, unsigned int off, + void *val, size_t count) { struct eeprom_93xx46_dev *edev = priv; + size_t bytes_read = count; char *buf = val; int err = 0; int bits; @@ -158,7 +159,7 @@ static int eeprom_93xx46_read(void *priv, unsigned int off, mutex_unlock(&edev->lock); - return err; + return err < 0 ? err : bytes_read; } static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on) @@ -258,12 +259,13 @@ eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev, return ret; } -static int eeprom_93xx46_write(void *priv, unsigned int off, +static ssize_t eeprom_93xx46_write(void *priv, unsigned int off, void *val, size_t count) { struct eeprom_93xx46_dev *edev = priv; char *buf = val; int i, ret, step = 1; + size_t bytes_written = count; if (unlikely(off >= edev->size)) return -EFBIG; @@ -304,7 +306,7 @@ static int eeprom_93xx46_write(void *priv, unsigned int off, /* erase/write disable */ eeprom_93xx46_ew(edev, 0); - return ret; + return ret < 0 ? ret : bytes_written; } static int eeprom_93xx46_eral(struct eeprom_93xx46_dev *edev)