Fix compilation warning
diff --git a/wpa_ctrl.c b/wpa_ctrl.c
index 0d5dd28..d232949 100644
--- a/wpa_ctrl.c
+++ b/wpa_ctrl.c
@@ -153,7 +153,7 @@
* event of crashes that prevented them from being removed as part
* of the normal orderly shutdown.
*/
-void wpa_ctrl_cleanup()
+void wpa_ctrl_cleanup(void)
{
DIR *dir;
struct dirent entry;
diff --git a/wpa_ctrl.h b/wpa_ctrl.h
index a81dec9..1171712 100644
--- a/wpa_ctrl.h
+++ b/wpa_ctrl.h
@@ -187,7 +187,7 @@
* event of crashes that prevented them from being removed as part
* of the normal orderly shutdown.
*/
-void wpa_ctrl_cleanup();
+void wpa_ctrl_cleanup(void);
#endif /* ANDROID */
#ifdef CONFIG_CTRL_IFACE_UDP