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Date: Wed,  5 Jun 2024 17:59:50 +0000
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Subject: [PATCH v1 06/17] misc: eeprom: at24: Change nvmem reg_read/write
 return type
From: Joy Chakraborty <joychakr@google.com>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>, 
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>, 
	Lars-Peter Clausen <lars@metafoo.de>, Sakari Ailus <sakari.ailus@linux.intel.com>, 
	Bingbu Cao <bingbu.cao@intel.com>, Zhihao Cheng <chengzhihao1@huawei.com>, 
	Jerome Brunet <jbrunet@baylibre.com>, 
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>
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 <joychakr@google.com>
Content-Type: text/plain; charset="UTF-8"

Change nvmem read/write function definition return type to ssize_t.

Signed-off-by: Joy Chakraborty <joychakr@google.com>
---
 drivers/misc/eeprom/at24.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 4bd4f32bcdab..0e8d92d6ab1e 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -424,8 +424,9 @@ static ssize_t at24_regmap_write(struct at24_data *at24, const char *buf,
 	return -ETIMEDOUT;
 }
 
-static int at24_read(void *priv, unsigned int off, void *val, size_t count)
+static ssize_t at24_read(void *priv, unsigned int off, void *val, size_t count)
 {
+	size_t bytes_read = count;
 	struct at24_data *at24;
 	struct device *dev;
 	char *buf = val;
@@ -465,11 +466,12 @@ static int at24_read(void *priv, unsigned int off, void *val, size_t count)
 	if (unlikely(at24->read_post))
 		at24->read_post(off, buf, i);
 
-	return 0;
+	return bytes_read;
 }
 
-static int at24_write(void *priv, unsigned int off, void *val, size_t count)
+static ssize_t at24_write(void *priv, unsigned int off, void *val, size_t count)
 {
+	size_t bytes_written = count;
 	struct at24_data *at24;
 	struct device *dev;
 	char *buf = val;
@@ -509,7 +511,7 @@ static int at24_write(void *priv, unsigned int off, void *val, size_t count)
 
 	pm_runtime_put(dev);
 
-	return 0;
+	return bytes_written;
 }
 
 static int at24_make_dummy_client(struct at24_data *at24, unsigned int index,
-- 
2.45.1.467.gbab1589fc0-goog