hwmon: (nct7802) fix visibility of temp3

Excerpt from datasheet:
7.2.32 Mode Selection Register
RTD3_MD : 00=Closed , 01=Reserved , 10=Thermistor mode , 11=Voltage sense

Show temp3 only in Thermistor mode

Cc: stable@vger.kernel.org # v3.19+
Signed-off-by: Constantine Shulyupin <const@MakeLinux.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c
index 55765790907b3768eb1c4b23e2e3bd77d4eaf294..28fcb2e246d55a7acc52703e434b98de3e22c45b 100644 (file)
--- a/drivers/hwmon/nct7802.c
+++ b/drivers/hwmon/nct7802.c
@@ -547,7 +547,7 @@ static umode_t nct7802_temp_is_visible(struct kobject *kobj,
        if (index >= 9 && index < 18 &&
            (reg & 0x0c) != 0x04 && (reg & 0x0c) != 0x08)       /* RD2 */
                return 0;
-       if (index >= 18 && index < 27 && (reg & 0x30) != 0x10)  /* RD3 */
+       if (index >= 18 && index < 27 && (reg & 0x30) != 0x20)  /* RD3 */
                return 0;
        if (index >= 27 && index < 35)                          /* local */
                return attr->mode;