hwmon: (ltc4282) Fix reading the minimum alarm voltage

Coverity reports an out-of-bounds access when reading the minimum alarm
voltage for the VGPIO channel. Add the missing return statement to fix
the problem.

Fixes: cbc29538dbf7 ("hwmon: Add driver for LTC4282")
Cc: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/ltc4282.c b/drivers/hwmon/ltc4282.c
index 39b9d3abca990b3df6b59337d7c8c0a072093008..cc698803f8bf8bd853fbe0284a77a16b20d7f05b 100644 (file)
--- a/drivers/hwmon/ltc4282.c
+++ b/drivers/hwmon/ltc4282.c
@@ -374,8 +374,8 @@ static int ltc4282_read_in(struct ltc4282_state *st, u32 attr, long *val,
                                                   channel, val);
        case hwmon_in_min_alarm:
                if (channel == LTC4282_CHAN_VGPIO)
-                       ltc4282_read_alarm(st, LTC4282_ADC_ALERT_LOG,
-                                          LTC4282_GPIO_ALARM_L_MASK, val);
+                       return ltc4282_read_alarm(st, LTC4282_ADC_ALERT_LOG,
+                                                 LTC4282_GPIO_ALARM_L_MASK, val);
 
                return ltc4282_vdd_source_read_alm(st,
                                                   LTC4282_VSOURCE_ALARM_L_MASK,