[lm-sensors] [PATCH 2/4] hwmon: it87 only create pwm1-3 sysfs files if fan1-3 exist

[Andrew Paprocki]

This patch only creates the pwmN_enable, pwmN, and pwmN_freq
sysfs interface files if the corresponding fanN is enabled by
the chip.

Signed-off-by: Andrew Paprocki <andrew at ishiboo.com>
---
 drivers/hwmon/it87.c |   46 +++++++++++++++++++++++++++-------------------
 1 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 30cdb09..7de4af8 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -1168,25 +1168,33 @@ static int __devinit it87_probe(struct platform_device *pdev)
 	}
 
 	if (enable_pwm_interface) {
-		if ((err = device_create_file(dev,
-		     &sensor_dev_attr_pwm1_enable.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm2_enable.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm3_enable.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm1.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm2.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm3.dev_attr))
-		 || (err = device_create_file(dev,
-		     &dev_attr_pwm1_freq))
-		 || (err = device_create_file(dev,
-		     &dev_attr_pwm2_freq))
-		 || (err = device_create_file(dev,
-		     &dev_attr_pwm3_freq)))
-			goto ERROR4;
+		if (data->has_fan & (1 << 0)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm1_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm1.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm1_freq)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 1)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm2_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm2.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm2_freq)))
+				goto ERROR4;
+		}
+		if (data->has_fan & (1 << 2)) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm3_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm3.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm3_freq)))
+				goto ERROR4;
+		}
 	}
 
 	if (data->type == it8712 || data->type == it8716
-- 
1.5.6