Index: uspace/srv/hid/input/port/adb.c
===================================================================
--- uspace/srv/hid/input/port/adb.c	(revision 2b95d13f98bfcaac3a7fb025f44c611b5d228c08)
+++ uspace/srv/hid/input/port/adb.c	(revision dba3e2cf2078e7d3f73d3a8d0e68377f8c0a08cc)
@@ -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 2b95d13f98bfcaac3a7fb025f44c611b5d228c08)
+++ uspace/srv/hid/input/port/adb_mouse.c	(revision dba3e2cf2078e7d3f73d3a8d0e68377f8c0a08cc)
@@ -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 2b95d13f98bfcaac3a7fb025f44c611b5d228c08)
+++ uspace/srv/hid/input/port/chardev.c	(revision dba3e2cf2078e7d3f73d3a8d0e68377f8c0a08cc)
@@ -148,5 +148,5 @@
 		}
 
-		int retval;
+		int retval = EOK;
 
 		switch (IPC_GET_IMETHOD(call)) {