kernel - Fix panic in uhci attach error path
authorMatthew Dillon <dillon@apollo.backplane.com>
Fri, 29 Mar 2019 16:52:51 +0000 (09:52 -0700)
committerMatthew Dillon <dillon@apollo.backplane.com>
Fri, 29 Mar 2019 16:52:51 +0000 (09:52 -0700)
commitbdb5557385e38fcef67223941763b6851e08589c
treef56628190210012f4464230b582db75a902fd930
parentac392440fc56f1b52c866ba9a191e4cf8bc4bef8
kernel - Fix panic in uhci attach error path

* Fix a panic in uhci's attach error path for an early failure
  case.  uhci was trying to release a non-existant irq.

Reported-by: peeter007, zrj
sys/bus/u4b/controller/uhci.c