diff options
| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2015-04-17 22:12:25 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-04-17 22:58:37 +0300 |
| commit | e3122b7fae7b4e3d1d49fa84f6515bcbe6cbc6fc (patch) | |
| tree | 4da80804e57296d9cbe7a48f22d6734b557c9c64 | |
| parent | 2591ffd3085e34a231480efe8f1cac83ebb81725 (diff) | |
| download | linux-e3122b7fae7b4e3d1d49fa84f6515bcbe6cbc6fc.tar.xz | |
net: dsa: use DEVICE_ATTR_RW to declare temp1_max
Since commit da4759c (sysfs: Use only return value from is_visible for
the file mode), it is possible to reduce the permissions of a file.
So declare temp1_max with the DEVICE_ATTR_RW macro and remove the write
permission in dsa_hwmon_attrs_visible if set_temp_limit isn't provided.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/dsa/dsa.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 5eaadabe23a1..079a224471e7 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -124,7 +124,7 @@ static ssize_t temp1_max_store(struct device *dev, return count; } -static DEVICE_ATTR(temp1_max, S_IRUGO, temp1_max_show, temp1_max_store); +static DEVICE_ATTR_RW(temp1_max); static ssize_t temp1_max_alarm_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -159,8 +159,8 @@ static umode_t dsa_hwmon_attrs_visible(struct kobject *kobj, if (index == 1) { if (!drv->get_temp_limit) mode = 0; - else if (drv->set_temp_limit) - mode |= S_IWUSR; + else if (!drv->set_temp_limit) + mode &= ~S_IWUSR; } else if (index == 2 && !drv->get_temp_alarm) { mode = 0; } |