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14217038bc
The previous commit used Coccinelle to convert from checking the Error object to checking the return value. Convert a few more manually. Also tweak control flow in places to conform to the conventional "if error bail out" pattern. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200707160613.848843-20-armbru@redhat.com>