[PATCH] hwmon: (ltc4282) Fix reading the minimum alarm voltage

[Guenter Roeck <linux@roeck-us.net>]

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>
---
Sashiko is likely to report a potential overflow in
ltc4282_set_max_limits(). That will need to be fixed in a separate
patch.

 drivers/hwmon/ltc4282.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/ltc4282.c b/drivers/hwmon/ltc4282.c
index 39b9d3abca99..cc698803f8bf 100644
--- 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,
-- 
2.45.2