Index: uspace/lib/drv/generic/driver.c
===================================================================
--- uspace/lib/drv/generic/driver.c	(revision 945d66cf8dee14cc5321c053cc3ed3c7d7f918bf)
+++ uspace/lib/drv/generic/driver.c	(revision 9e79a2f925c4a421cd998d57f96bba562c9d640d)
@@ -821,4 +821,5 @@
 	assert(fun->bound == false);
 	assert(fun->name != NULL);
+	assert(fun->dev != NULL);
 	
 	add_to_functions_list(fun);