linux-kernel - [PATCH v1 02/17] media: i2c: ov2740: Change nvmem reg

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Message-ID: <20240605175953.2613260-3-joychakr@google.com>
Date: Wed,  5 Jun 2024 17:59:46 +0000
From: Joy Chakraborty <joychakr@...gle.com>
To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
	Lars-Peter Clausen <lars@...afoo.de>, Sakari Ailus <sakari.ailus@...ux.intel.com>, 
	Bingbu Cao <bingbu.cao@...el.com>, Zhihao Cheng <chengzhihao1@...wei.com>, 
	Jerome Brunet <jbrunet@...libre.com>, 
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-iio@...r.kernel.org, linux-media@...r.kernel.org, 
	linux-i2c@...r.kernel.org, linux-gpio@...r.kernel.org, 
	linux-mtd@...ts.infradead.org, linux-rtc@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-amlogic@...ts.infradead.org, 
	linux-sunxi@...ts.linux.dev, linux-tegra@...r.kernel.org, 
	linux-usb@...r.kernel.org, manugautam@...gle.com, 
	Joy Chakraborty <joychakr@...gle.com>
Subject: [PATCH v1 02/17] media: i2c: ov2740: Change nvmem reg_read/write
 return type

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

Signed-off-by: Joy Chakraborty <joychakr@...gle.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