Index: uspace/drv/bus/isa/isa.c
===================================================================
--- uspace/drv/bus/isa/isa.c	(revision b19e892c22afbf67aa5988554dd3f003efeadc04)
+++ uspace/drv/bus/isa/isa.c	(revision 151f1cc5a424a21091c1839670a7631416253a1f)
@@ -298,5 +298,5 @@
 
 	if (opened)
-		close(fd);
+		vfs_put(fd);
 
 	return buf;