[PATCH] leds: blinkm: Replace all non-returning strlcpy with strscpy

From: Azeem Shaikh
Date: Mon May 22 2023 - 22:12:41 EST


strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@xxxxxxxxx>
---
drivers/leds/leds-blinkm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
index 37f2f32ae42d..8c2ae0798cfc 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;
}