Index: uspace/lib/usbhost/src/endpoint.c
===================================================================
--- uspace/lib/usbhost/src/endpoint.c	(revision 620c710af8ea806f074c8dc9ea391400b6b82226)
+++ uspace/lib/usbhost/src/endpoint.c	(revision 7d364fb8ea8ef4fe1f9f9a2a7f89c21619faf824)
@@ -89,4 +89,5 @@
 {
 	assert(instance);
+	instance->destroy_hook = NULL;
 	instance->hc_data.data = NULL;
 	instance->hc_data.toggle_get = NULL;