linux-kernel - [PATCH] leds: move from strlcpy with unused retval to strscpy

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Date:   Thu, 18 Aug 2022 23:00:24 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-kernel@...r.kernel.org
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Pavel Machek <pavel@....cz>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Jan-Simon Moeller <jansimon.moeller@....de>,
        linux-leds@...r.kernel.org
Subject: [PATCH] leds: move from strlcpy with unused retval to strscpy

Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
---
 drivers/leds/flash/leds-aat1290.c | 2 +-
 drivers/leds/flash/leds-as3645a.c | 4 ++--
 drivers/leds/led-class.c          | 2 +-
 drivers/leds/leds-blinkm.c        | 2 +-
 drivers/leds/leds-spi-byte.c      | 2 +-
 5 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/leds/flash/leds-aat1290.c b/drivers/leds/flash/leds-aat1290.c
index 589484b22c79..f12ecb2c6580 100644
--- a/drivers/leds/flash/leds-aat1290.c
+++ b/drivers/leds/flash/leds-aat1290.c
@@ -425,7 +425,7 @@ static void aat1290_init_v4l2_flash_config(struct aat1290_led *led,
 	struct led_classdev *led_cdev = &led->fled_cdev.led_cdev;
 	struct led_flash_setting *s;
 
-	strlcpy(v4l2_sd_cfg->dev_name, led_cdev->dev->kobj.name,
+	strscpy(v4l2_sd_cfg->dev_name, led_cdev->dev->kobj.name,
 		sizeof(v4l2_sd_cfg->dev_name));
 
 	s = &v4l2_sd_cfg->intensity;
diff --git a/drivers/leds/flash/leds-as3645a.c b/drivers/leds/flash/leds-as3645a.c
index aa3f82be0a9c..570c5cdfb611 100644
--- a/drivers/leds/flash/leds-as3645a.c
+++ b/drivers/leds/flash/leds-as3645a.c
@@ -651,8 +651,8 @@ static int as3645a_v4l2_setup(struct as3645a *flash)
 		},
 	};
 
-	strlcpy(cfg.dev_name, led->dev->kobj.name, sizeof(cfg.dev_name));
-	strlcpy(cfgind.dev_name, flash->iled_cdev.dev->kobj.name,
+	strscpy(cfg.dev_name, led->dev->kobj.name, sizeof(cfg.dev_name));
+	strscpy(cfgind.dev_name, flash->iled_cdev.dev->kobj.name,
 		sizeof(cfgind.dev_name));
 
 	flash->vf = v4l2_flash_init(
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 6a8ea94834fa..71b47c081b37 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -310,7 +310,7 @@ static int led_classdev_next_name(const char *init_name, char *name,
 	int ret = 0;
 	struct device *dev;
 
-	strlcpy(name, init_name, len);
+	strscpy(name, init_name, len);
 
 	while ((ret < len) &&
 	       (dev = class_find_device_by_name(leds_class, name))) {
diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
index bd7d0d5cf3b6..883f39e17f2f 100644
--- a/drivers/leds/leds-blinkm.c
+++ b/drivers/leds/leds-blinkm.c
@@ -561,7 +561,7 @@ static int blinkm_detect(struct i2c_client *client, struct i2c_board_info *info)
 		return -ENODEV;
 	}
 
-	strlcpy(info->type, "blinkm", I2C_NAME_SIZE);
+	strscpy(info->type, "blinkm", I2C_NAME_SIZE);
 	return 0;
 }
 
diff --git a/drivers/leds/leds-spi-byte.c b/drivers/leds/leds-spi-byte.c
index 2bc5c99daf51..2c7ffc3c78e6 100644
--- a/drivers/leds/leds-spi-byte.c
+++ b/drivers/leds/leds-spi-byte.c
@@ -98,7 +98,7 @@ static int spi_byte_probe(struct spi_device *spi)
 		return -ENOMEM;
 
 	of_property_read_string(child, "label", &name);
-	strlcpy(led->name, name, sizeof(led->name));
+	strscpy(led->name, name, sizeof(led->name));
 	led->spi = spi;
 	mutex_init(&led->mutex);
 	led->cdef = device_get_match_data(dev);
-- 
2.35.1