hwmon: (nct6775) Drop unsupported fan alarm attributes for NCT6775

NCT6775 does not support alarms for fans 4 and 5. Drop the attributes.

cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 2405ab4..99cec18 100644 (file)
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -199,7 +199,7 @@ static const s8 NCT6775_ALARM_BITS[] = {
        0, 1, 2, 3, 8, 21, 20, 16,      /* in0.. in7 */
        17, -1, -1, -1, -1, -1, -1,     /* in8..in14 */
        -1,                             /* unused */
-       6, 7, 11, 10, 23,               /* fan1..fan5 */
+       6, 7, 11, -1, -1,               /* fan1..fan5 */
        -1, -1, -1,                     /* unused */
        4, 5, 13, -1, -1, -1,           /* temp1..temp6 */
        12, -1 };                       /* intrusion0, intrusion1 */
@@ -3877,10 +3877,12 @@ static int nct6775_probe(struct platform_device *pdev)
                                                 &sda_fan_input[i].dev_attr);
                        if (err)
                                goto exit_remove;
-                       err = device_create_file(dev,
-                                                &sda_fan_alarm[i].dev_attr);
-                       if (err)
-                               goto exit_remove;
+                       if (data->ALARM_BITS[FAN_ALARM_BASE + i] >= 0) {
+                               err = device_create_file(dev,
+                                               &sda_fan_alarm[i].dev_attr);
+                               if (err)
+                                       goto exit_remove;
+                       }
                        if (data->kind != nct6776 &&
                            data->kind != nct6779) {
                                err = device_create_file(dev,