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block: Split bdrv_new_root() off bdrv_new()

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Creating an anonymous BDS can't fail.  Make that obvious.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2014-10-07 13:59:03 +02:00 • committed by Kevin Wolf
parent ec0de76874
commit e4e9986b1c
9 changed files with 30 additions and 19 deletions
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2
hw/block/xen_disk.c
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@ -858,7 +858,7 @@ static int blk_connect(struct XenDevice *xendev)
/* setup via xenbus -> create new block driver instance */
xen_be_printf(&blkdev->xendev, 2, "create new bdrv (xenbus setup)\n");
blkdev->bs = bdrv_new(blkdev->dev, NULL);
blkdev->bs = bdrv_new_root(blkdev->dev, NULL);
if (!blkdev->bs) {
return -1;
}