Share a single wpa_scan_results_free() implementation

There is not really a very good location for this anywhere, but the
function is small enough to live as an inline function for now.

src/ap/hw_features.c

@@ -407,20 +407,6 @@ static int ieee80211n_check_40mhz_2g4(struct hostapd_iface *iface,
 }
 
 
-static void wpa_scan_results_free(struct wpa_scan_results *res)
-{
-	size_t i;
-
-	if (res == NULL)
-		return;
-
-	for (i = 0; i < res->num; i++)
-		os_free(res->res[i]);
-	os_free(res->res);
-	os_free(res);
-}
-
-
 static void ieee80211n_check_scan(struct hostapd_iface *iface)
 {
 	struct wpa_scan_results *scan_res;

src/drivers/driver.h

@@ -3564,4 +3564,17 @@ static inline void drv_event_eapol_rx(void *ctx, const u8 *src, const u8 *data,
 	wpa_supplicant_event(ctx, EVENT_EAPOL_RX, &event);
 }
 
+static inline void wpa_scan_results_free(struct wpa_scan_results *res)
+{
+	size_t i;
+
+	if (res == NULL)
+		return;
+
+	for (i = 0; i < res->num; i++)
+		os_free(res->res[i]);
+	os_free(res->res);
+	os_free(res);
+}
+
 #endif /* DRIVER_H */

src/drivers/driver_nl80211.c

@@ -3065,20 +3065,6 @@ static void wpa_driver_nl80211_check_bss_status(
 }
 
 
-static void wpa_scan_results_free(struct wpa_scan_results *res)
-{
-	size_t i;
-
-	if (res == NULL)
-		return;
-
-	for (i = 0; i < res->num; i++)
-		os_free(res->res[i]);
-	os_free(res->res);
-	os_free(res);
-}
-
-
 static struct wpa_scan_results *
 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
 {

wpa_supplicant/scan.c

@@ -1139,17 +1139,3 @@ int wpa_supplicant_update_scan_results(struct wpa_supplicant *wpa_s)
 
 	return 0;
 }
-
-
-void wpa_scan_results_free(struct wpa_scan_results *res)
-{
-	size_t i;
-
-	if (res == NULL)
-		return;
-
-	for (i = 0; i < res->num; i++)
-		os_free(res->res[i]);
-	os_free(res->res);
-	os_free(res);
-}

wpa_supplicant/scan.h

@@ -38,6 +38,5 @@ struct wpabuf * wpa_scan_get_vendor_ie_multi(const struct wpa_scan_res *res,
 					     u32 vendor_type);
 struct wpabuf * wpa_scan_get_vendor_ie_multi_beacon(
 	const struct wpa_scan_res *res, u32 vendor_type);
-void wpa_scan_results_free(struct wpa_scan_results *res);
 
 #endif /* SCAN_H */