tree bc4d5b75394733d277652b127066461b7197c360
parent a28315ebaf3910b65ef51abefc4ef040265afc19
author Markus Armbruster <armbru@redhat.com> 1398437431 +0200
committer Stefan Hajnoczi <stefanha@redhat.com> 1398441906 +0200

Use error_is_set() only when necessary (again)

error_is_set(&var) is the same as var != NULL, but it takes
whole-program analysis to figure that out.  Unnecessarily hard for
optimizers, static checkers, and human readers.  Commit 84d18f0 dumbed
it down to obvious, but a few more have crept in since, and
documentation was overlooked.  Dumb these down, too.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>