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leds: mlxreg: Fix possible buffer overflow 

[ Upstream commit 7c6082b903 ]

Error was detected by PVS-Studio:
V512 A call of the 'sprintf' function will lead to overflow of
the buffer 'led_data->led_cdev_name'.

Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Oleh Kravchenko 2019-10-16 10:24:30 +03:00 committed by Greg Kroah-Hartman
parent 36f11775da
commit e645b649c4
1 changed files with 2 additions and 2 deletions
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4
drivers/leds/leds-mlxreg.c
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@ -228,8 +228,8 @@ static int mlxreg_led_config(struct mlxreg_led_priv_data *priv)
brightness = LED_OFF;
led_data->base_color = MLXREG_LED_GREEN_SOLID;
}
sprintf(led_data->led_cdev_name, "%s:%s", "mlxreg",
data->label);
snprintf(led_data->led_cdev_name, sizeof(led_data->led_cdev_name),
"mlxreg:%s", data->label);
led_cdev->name = led_data->led_cdev_name;
led_cdev->brightness = brightness;
led_cdev->max_brightness = LED_ON;