diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 8ced615add712d7f63b3a8ea387b0581c8ce1783..f8416965c2198a267e2e247931eb205707145911 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -588,7 +588,7 @@ static ssize_t ieee80211_if_parse_active_links(struct ieee80211_sub_if_data *sda
 {
 	u16 active_links;
 
-	if (kstrtou16(buf, 0, &active_links))
+	if (kstrtou16(buf, 0, &active_links) || !active_links)
 		return -EINVAL;
 
 	return ieee80211_set_active_links(&sdata->vif, active_links) ?: buflen;