Index: uspace/srv/hid/input/port/adb.c
===================================================================
--- uspace/srv/hid/input/port/adb.c	(revision 55edba03c94a1f730602809a88e2bfb4b884c7ad)
+++ uspace/srv/hid/input/port/adb.c	(revision cdc8a39124d8fd8674ce793822f2622b0c811c64)
@@ -118,5 +118,5 @@
 		ipc_callid_t callid = async_get_call(&call);
 
-		int retval;
+		int retval = EOK;
 		
 		if (!IPC_GET_IMETHOD(call)) {
Index: uspace/srv/hid/input/port/adb_mouse.c
===================================================================
--- uspace/srv/hid/input/port/adb_mouse.c	(revision 55edba03c94a1f730602809a88e2bfb4b884c7ad)
+++ uspace/srv/hid/input/port/adb_mouse.c	(revision cdc8a39124d8fd8674ce793822f2622b0c811c64)
@@ -54,5 +54,5 @@
 		ipc_callid_t callid = async_get_call(&call);
 		
-		int retval;
+		int retval = EOK;
 		
 		if (!IPC_GET_IMETHOD(call)) {
Index: uspace/srv/hid/input/port/chardev.c
===================================================================
--- uspace/srv/hid/input/port/chardev.c	(revision 55edba03c94a1f730602809a88e2bfb4b884c7ad)
+++ uspace/srv/hid/input/port/chardev.c	(revision cdc8a39124d8fd8674ce793822f2622b0c811c64)
@@ -148,5 +148,5 @@
 		}
 
-		int retval;
+		int retval = EOK;
 
 		switch (IPC_GET_IMETHOD(call)) {