---
- branch: MAIN
  date: Sat Dec  5 14:48:09 UTC 2020
  files:
  - new: '1.3'
    old: '1.2'
    path: src/sys/dev/i2c/pcf8574.c
    pathrev: src/sys/dev/i2c/pcf8574.c@1.3
    type: modified
  id: 20201205T144809Z.e369597e472bcaf4156a8fd5f868702cf6f6cd1c
  log: |
    When matching, try a read in case this is an optional device and isn't
    actually present.
    Make sure that we set sc->sc_sme to NULL in failure cases and when we
    detach in order to avoid calling sysmon_envsys_unregister() with an
    invalid struct.
  module: src
  subject: 'CVS commit: src/sys/dev/i2c'
  unixtime: '1607179689'
  user: jdc