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Date: Wed,  5 Jun 2024 17:59:46 +0000
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Subject: [PATCH v1 02/17] media: i2c: ov2740: 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/media/i2c/ov2740.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/i2c/ov2740.c b/drivers/media/i2c/ov2740.c
index c48dbcde9877..0101ab55a5ef 100644
--- a/drivers/media/i2c/ov2740.c
+++ b/drivers/media/i2c/ov2740.c
@@ -1212,8 +1212,8 @@ static void ov2740_remove(struct i2c_client *client)
 	pm_runtime_disable(&client->dev);
 }
 
-static int ov2740_nvmem_read(void *priv, unsigned int off, void *val,
-			     size_t count)
+static ssize_t ov2740_nvmem_read(void *priv, unsigned int off, void *val,
+				 size_t count)
 {
 	struct nvm_data *nvm = priv;
 	struct device *dev = regmap_get_device(nvm->regmap);
@@ -1241,7 +1241,7 @@ static int ov2740_nvmem_read(void *priv, unsigned int off, void *val,
 	pm_runtime_put(dev);
 exit:
 	v4l2_subdev_unlock_state(sd_state);
-	return ret;
+	return ret < 0 ? ret : count;
 }
 
 static int ov2740_register_nvmem(struct i2c_client *client,
-- 
2.45.1.467.gbab1589fc0-goog