tree cdf3f33ebe91969f843d784e03c798ef80d6fad8
parent 9ffe333276de8ef463896303fb951f03fd4ffcb4
author Kevin Wolf <kwolf@redhat.com> 1397734025 +0200
committer Kevin Wolf <kwolf@redhat.com> 1398160828 +0200

block: Catch duplicate IDs in bdrv_new()

Since commit f298d071, block devices added with blockdev-add don't have
a QemuOpts around in dinfo->opts. Consequently, we can't rely any more
on QemuOpts catching duplicate IDs for block devices.

This patch adds a new check for duplicate IDs to bdrv_new(), and moves
the existing check that the ID isn't already taken for a node-name there
as well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>