Index: uspace/srv/hid/input/gsp.c
===================================================================
--- uspace/srv/hid/input/gsp.c	(revision 062d9000625057300f609429080872d6492b542e)
+++ uspace/srv/hid/input/gsp.c	(revision dcb07513e66a1ecb603d6f380ffee05fa3b4e187)
@@ -87,6 +87,6 @@
 	.key_hash = trans_key_hash,
 	.key_equal = trans_key_equal,
-	.equal = 0,
-	.remove_callback = 0
+	.equal = NULL,
+	.remove_callback = NULL
 };