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Wed, 05 Jun 2024 11:00:30 -0700 (PDT) Date: Wed, 5 Jun 2024 17:59:51 +0000 In-Reply-To: <20240605175953.2613260-1-joychakr@google.com> Precedence: bulk X-Mailing-List: linux-hwmon@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: <20240605175953.2613260-8-joychakr@google.com> Subject: [PATCH v1 07/17] misc: eeprom: at25: 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/at25.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 595ceb9a7126..73d60f80aea8 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -74,8 +74,8 @@ struct at25_data { #define io_limit PAGE_SIZE /* bytes */ -static int at25_ee_read(void *priv, unsigned int offset, - void *val, size_t count) +static ssize_t at25_ee_read(void *priv, unsigned int offset, + void *val, size_t count) { struct at25_data *at25 = priv; char *buf = val; @@ -147,7 +147,7 @@ static int at25_ee_read(void *priv, unsigned int offset, dev_dbg(&at25->spi->dev, "read %zu bytes at %d\n", count, offset); - return 0; + return count; } /* Read extra registers as ID or serial number */ @@ -195,10 +195,11 @@ static struct attribute *sernum_attrs[] = { }; ATTRIBUTE_GROUPS(sernum); -static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count) +static ssize_t at25_ee_write(void *priv, unsigned int off, void *val, size_t count) { struct at25_data *at25 = priv; size_t maxsz = spi_max_transfer_size(at25->spi); + size_t bytes_written = count; const char *buf = val; int status = 0; unsigned buf_size; @@ -313,7 +314,7 @@ static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count) mutex_unlock(&at25->lock); kfree(bounce); - return status; + return status < 0 ? status : bytes_written; } /*-------------------------------------------------------------------------*/