diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 85c9034c59b276fb3a3606f3845e81ea714bc1c5..bd0a16c3de5e9f37d37f3f19e1b9e8a8ccd8cde9 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -380,7 +380,8 @@ static bool is_valid_reg_rule(const struct ieee80211_reg_rule *rule)
 
 	freq_diff = freq_range->end_freq_khz - freq_range->start_freq_khz;
 
-	if (freq_diff <= 0 || freq_range->max_bandwidth_khz > freq_diff)
+	if (freq_range->end_freq_khz <= freq_range->start_freq_khz ||
+			freq_range->max_bandwidth_khz > freq_diff)
 		return false;
 
 	return true;