tree 615edf5f5f7e6998b4ae68bd52effeb316881376
parent 3348e62e2af12fa6bd191292dff4a4195628579b
author Anthony Wilson <wilsonan@us.ibm.com> 1553637950 -0500
committer Anthony Wilson <wilsonan@us.ibm.com> 1554146505 -0500

cleanupPCIE: Catch file_error::Open exception

The bus that is read may only show up at certain
times, such as during poweron. It is not
a fatal error condition if the bus is not available.
So we will let it get logged to the journal, but not
let it get committed in this case.

Tested: It was an intermittent failure, but ran
        poweron/poweroff a few times and didn't see
        the error pop up again.

Resolves: openbmc/openbmc#3510

Change-Id: I47629e5f27fb847aa0094f0757b1988f8e645ebc
Signed-off-by: Anthony Wilson <wilsonan@us.ibm.com>