leds: trigger: netdev: reject interval store for hw_control

Reject interval store with hw_control enabled. It's are currently not
supported and MUST be set to the default value with hw control enabled.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c
index 2101cbbda707fb1161842f21f0091e8bd13ffa81..cb2ec33abc4e670a7ac6608dda73c88c69da2c4a 100644 (file)
--- a/drivers/leds/trigger/ledtrig-netdev.c
+++ b/drivers/leds/trigger/ledtrig-netdev.c
@@ -265,6 +265,9 @@ static ssize_t interval_store(struct device *dev,
        unsigned long value;
        int ret;
 
+       if (trigger_data->hw_control)
+               return -EINVAL;
+
        ret = kstrtoul(buf, 0, &value);
        if (ret)
                return ret;