On Wed, Oct 24, 2007 at 10:25:29PM -0400, Mark M. Hoffman wrote:
> * Riku Voipio <[email protected]> [2007-10-24 14:50:34 +0300]:
> > On Fri, Oct 19, 2007 at 02:37:54PM +0200, Jean Delvare wrote:
> > > Riku, can you please submit a patch fixing this? The attribute should
> > > be declared read-only, and then you can use sysfs_chmod_file() to
> > > change it to read-write where supported.
> > Thanks, this was good suggestion. Patch attached.
> No patch?
Let's try again..
--
"rm -rf" only sounds scary if you don't have backups
>From 90a98836377541819012dfea8bd1bf748cd39723 Mon Sep 17 00:00:00 2001
From: Riku Voipio <[email protected]>
Date: Mon, 22 Oct 2007 17:42:35 +0300
Subject: [PATCH] Fix hwmon/f75375s.c: buggy if()
Fix value check in set_pwm_mode(). Instead of checking for
chip variant there, make pwmX_mode sysfs nodes only writable
on f75375 variant.
Signed-off-by: Riku Voipio <[email protected]>
---
drivers/hwmon/f75375s.c | 19 ++++++++++++++++---
1 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index 13a0413..d3b7932 100644
--- a/drivers/hwmon/f75375s.c
+++ b/drivers/hwmon/f75375s.c
@@ -323,7 +323,7 @@ static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
int val = simple_strtoul(buf, NULL, 10);
u8 conf = 0;
- if (val != 0 || val != 1 || data->kind == f75373)
+ if (!(val == 0 || val == 1))
return -EINVAL;
mutex_lock(&data->update_lock);
@@ -529,13 +529,13 @@ static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
show_pwm, set_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
show_pwm_enable, set_pwm_enable, 0);
-static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO|S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
show_pwm_mode, set_pwm_mode, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
show_pwm, set_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
show_pwm_enable, set_pwm_enable, 1);
-static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO|S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
show_pwm_mode, set_pwm_mode, 1);
static struct attribute *f75375_attributes[] = {
@@ -655,6 +655,19 @@ static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)
if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
goto exit_detach;
+ if (kind == f75375) {
+ err = sysfs_chmod_file(&client->dev.kobj,
+ &sensor_dev_attr_pwm1_mode.dev_attr.attr,
+ S_IRUGO | S_IWUSR);
+ if (err)
+ goto exit_detach;
+ err = sysfs_chmod_file(&client->dev.kobj,
+ &sensor_dev_attr_pwm2_mode.dev_attr.attr,
+ S_IRUGO | S_IWUSR);
+ if (err)
+ goto exit_detach;
+ }
+
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
--
1.5.3.1
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