diff --git a/drivers/net/wireless/ath/dfs_pattern_detector.c b/drivers/net/wireless/ath/dfs_pattern_detector.c
index a274eb0d1968..0813473793df 100644
--- a/drivers/net/wireless/ath/dfs_pattern_detector.c
+++ b/drivers/net/wireless/ath/dfs_pattern_detector.c
@@ -253,17 +253,15 @@ channel_detector_get(struct dfs_pattern_detector *dpd, u16 freq)
 static void dpd_reset(struct dfs_pattern_detector *dpd)
 {
 	struct channel_detector *cd;
-	if (!list_empty(&dpd->channel_detectors))
-		list_for_each_entry(cd, &dpd->channel_detectors, head)
-			channel_detector_reset(dpd, cd);
+	list_for_each_entry(cd, &dpd->channel_detectors, head)
+		channel_detector_reset(dpd, cd);
 
 }
 static void dpd_exit(struct dfs_pattern_detector *dpd)
 {
 	struct channel_detector *cd, *cd0;
-	if (!list_empty(&dpd->channel_detectors))
-		list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
-			channel_detector_exit(dpd, cd);
+	list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
+		channel_detector_exit(dpd, cd);
 	kfree(dpd);
 }
 
@@ -331,9 +329,8 @@ static bool dpd_set_domain(struct dfs_pattern_detector *dpd,
 		return false;
 
 	/* delete all channel detectors for previous DFS domain */
-	if (!list_empty(&dpd->channel_detectors))
-		list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
-			channel_detector_exit(dpd, cd);
+	list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
+		channel_detector_exit(dpd, cd);
 	dpd->radar_spec = rt->radar_types;
 	dpd->num_radar_types = rt->num_radar_types;