linux-kernel - [PATCH v1 03/17] media: i2c: video-i2c: Change nvmem reg

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Message-ID: <20240605175953.2613260-4-joychakr@google.com>
Date: Wed,  5 Jun 2024 17:59:47 +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 03/17] media: i2c: video-i2c: 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/video-i2c.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c
index 56dbe07a1c99..2bfc221b5104 100644
--- a/drivers/media/i2c/video-i2c.c
+++ b/drivers/media/i2c/video-i2c.c
@@ -151,12 +151,15 @@ struct video_i2c_chip {
 	int (*hwmon_init)(struct video_i2c_data *data);
 };
 
-static int mlx90640_nvram_read(void *priv, unsigned int offset, void *val,
-			     size_t bytes)
+static ssize_t mlx90640_nvram_read(void *priv, unsigned int offset, void *val,
+				   size_t bytes)
 {
 	struct video_i2c_data *data = priv;
+	int ret;
+
+	ret = regmap_bulk_read(data->regmap, MLX90640_EEPROM_START_ADDR + offset, val, bytes);
 
-	return regmap_bulk_read(data->regmap, MLX90640_EEPROM_START_ADDR + offset, val, bytes);
+	return ret < 0 ? ret : bytes;
 }
 
 static struct nvmem_config mlx90640_nvram_config = {
-- 
2.45.1.467.gbab1589fc0-goog