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Wed, 05 Jun 2024 11:00:18 -0700 (PDT) Date: Wed, 5 Jun 2024 17:59:48 +0000 In-Reply-To: <20240605175953.2613260-1-joychakr@google.com> Mime-Version: 1.0 References: <20240605175953.2613260-1-joychakr@google.com> X-Mailer: git-send-email 2.45.1.467.gbab1589fc0-goog Message-ID: <20240605175953.2613260-5-joychakr@google.com> Subject: [PATCH v1 04/17] iio: pressure: bmp280: 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240605_110022_583855_92F6E6F7 X-CRM114-Status: GOOD ( 10.46 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Change nvmem read/write function definition return type to ssize_t. Signed-off-by: Joy Chakraborty --- drivers/iio/pressure/bmp280-core.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c index 09f53d987c7d..8d5aeabfa297 100644 --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -1465,10 +1465,11 @@ static const int bmp580_odr_table[][2] = { static const int bmp580_nvmem_addrs[] = { 0x20, 0x21, 0x22 }; -static int bmp580_nvmem_read(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t bmp580_nvmem_read(void *priv, unsigned int offset, void *val, + size_t bytes) { struct bmp280_data *data = priv; + size_t bytes_read = bytes; u16 *dst = val; int ret, addr; @@ -1518,13 +1519,14 @@ static int bmp580_nvmem_read(void *priv, unsigned int offset, void *val, mutex_unlock(&data->lock); pm_runtime_mark_last_busy(data->dev); pm_runtime_put_autosuspend(data->dev); - return ret; + return ret < 0 ? ret : bytes_read; } -static int bmp580_nvmem_write(void *priv, unsigned int offset, void *val, - size_t bytes) +static ssize_t bmp580_nvmem_write(void *priv, unsigned int offset, void *val, + size_t bytes) { struct bmp280_data *data = priv; + size_t bytes_written = bytes; u16 *buf = val; int ret, addr; @@ -1582,7 +1584,7 @@ static int bmp580_nvmem_write(void *priv, unsigned int offset, void *val, mutex_unlock(&data->lock); pm_runtime_mark_last_busy(data->dev); pm_runtime_put_autosuspend(data->dev); - return ret; + return ret < 0 ? ret : bytes_written; } static int bmp580_preinit(struct bmp280_data *data) -- 2.45.1.467.gbab1589fc0-goog ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/