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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2015-04-17 19:12:25 (GMT)
committerDavid S. Miller <davem@davemloft.net>2015-04-17 19:58:37 (GMT)
commite3122b7fae7b4e3d1d49fa84f6515bcbe6cbc6fc (patch)
tree4da80804e57296d9cbe7a48f22d6734b557c9c64 /net/dsa
parent2591ffd3085e34a231480efe8f1cac83ebb81725 (diff)
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>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/dsa.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 5eaadab..079a224 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;
}

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