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-rw-r--r--drivers/leds/trigger/ledtrig-netdev.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c
index 2101cbbda707..cb2ec33abc4e 100644
--- 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;