hwmon: (asus_wmi_ec_sensors) fix array overflow

Smatch detected an array out of bounds error:

    drivers/hwmon/asus_wmi_ec_sensors.c:562 asus_wmi_ec_configure_sensor_setup()
    error: buffer overflow 'hwmon_attributes' 8 <= 9

The hwmon_attributes[] array needs to be declared with "hwmon_max"
elements.

Fixes: c04c7f7bfcbe ("hwmon: (asus_wmi_ec_sensors) Support B550 Asus WMI.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211130105034.GG5827@kili
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/asus_wmi_ec_sensors.c b/drivers/hwmon/asus_wmi_ec_sensors.c
index f612abc..22a1459 100644 (file)
--- a/drivers/hwmon/asus_wmi_ec_sensors.c
+++ b/drivers/hwmon/asus_wmi_ec_sensors.c
@@ -41,7 +41,7 @@
 #define ASUSWMI_MAX_BUF_LEN            128
 #define SENSOR_LABEL_LEN               16
 
-static u32 hwmon_attributes[] = {
+static u32 hwmon_attributes[hwmon_max] = {
        [hwmon_chip]    = HWMON_C_REGISTER_TZ,
        [hwmon_temp]    = HWMON_T_INPUT | HWMON_T_LABEL,
        [hwmon_in]      = HWMON_I_INPUT | HWMON_I_LABEL,