tree 396605853d833088eb940e03b62d76ac3046f696
parent 0aff637e920c0cdb74338c6f57005f2d7cab63d6
author Markus Armbruster <armbru@redhat.com> 1400518656 +0200
committer Gerd Hoffmann <kraxel@redhat.com> 1400666278 +0200

char: Explain qmp_chardev_add()'s unusual error handling

Character backend open hasn't been fully converted to the Error API.
Some opens fail without setting an error.  qmp_chardev_add() needs to
detect when that happens, and set a generic error.  Explain that in a
comment, and inline error_is_set() for clarity.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>