qcacld-3.0: free allocated memory for failure case

When obtaining twt session traffic statistics,
some allocated memory not freed for failure case.
Fix it to avoid memory leak.

Change-Id: I18ce45467c3600c3f62b23ab50582ecb40ced88d
CRs-Fixed: 3169747

core/hdd/src/wlan_hdd_twt.c

@@ -4006,7 +4006,8 @@ hdd_twt_request_session_traffic_stats(struct hdd_adapter *adapter,
 						skb_len);
 	if (!reply_skb) {
 		hdd_err("Get stats - alloc reply_skb failed");
-		return -ENOMEM;
+		errno = -ENOMEM;
+		goto free_event;
 	}
 
 	status = hdd_twt_pack_get_stats_resp_nlmsg(
@@ -4016,14 +4017,23 @@ hdd_twt_request_session_traffic_stats(struct hdd_adapter *adapter,
 						event->num_twt_infra_cp_stats);
 	if (QDF_IS_STATUS_ERROR(status)) {
 		hdd_err("Get stats - Failed to pack nl response");
-		wlan_cfg80211_vendor_free_skb(reply_skb);
-		return qdf_status_to_os_return(status);
+		errno = qdf_status_to_os_return(status);
+		goto free_skb;
 	}
 
 	qdf_mem_free(event->twt_infra_cp_stats);
 	qdf_mem_free(event);
 
 	return wlan_cfg80211_vendor_cmd_reply(reply_skb);
+
+free_skb:
+	wlan_cfg80211_vendor_free_skb(reply_skb);
+
+free_event:
+	qdf_mem_free(event->twt_infra_cp_stats);
+	qdf_mem_free(event);
+
+	return errno;
 }
 
 /**

os_if/cp_stats/src/wlan_cfg80211_mc_cp_stats.c

@@ -747,15 +747,15 @@ wlan_cfg80211_mc_twt_get_infra_cp_stats(struct wlan_objmgr_vdev *vdev,
 	out->twt_infra_cp_stats =
 			qdf_mem_malloc(sizeof(*out->twt_infra_cp_stats));
 	if (!out->twt_infra_cp_stats) {
+		qdf_mem_free(out);
 		*errno = -ENOMEM;
 		return NULL;
 	}
 
 	request = osif_request_alloc(&params);
 	if (!request) {
-		qdf_mem_free(out);
 		*errno = -ENOMEM;
-		return NULL;
+		goto free_stats_event;
 	}
 
 	cookie = osif_request_cookie(request);
@@ -765,7 +765,7 @@ wlan_cfg80211_mc_twt_get_infra_cp_stats(struct wlan_objmgr_vdev *vdev,
 			qdf_mem_malloc(sizeof(*priv->twt_infra_cp_stats));
 	if (!priv->twt_infra_cp_stats) {
 		*errno = -ENOMEM;
-		return NULL;
+		goto get_twt_stats_fail;
 	}
 	twt_event = priv->twt_infra_cp_stats;
 
@@ -834,6 +834,8 @@ wlan_cfg80211_mc_twt_get_infra_cp_stats(struct wlan_objmgr_vdev *vdev,
 
 get_twt_stats_fail:
 	osif_request_put(request);
+
+free_stats_event:
 	wlan_cfg80211_mc_infra_cp_stats_free_stats_event(out);
 
 	osif_debug("Exit");