block: Eliminate DriveInfo member bdrv, use blk_by_legacy_dinfo()

The patch is big, but all it really does is replacing

    dinfo->bdrv

by

    blk_bs(blk_by_legacy_dinfo(dinfo))

The replacement is repetitive, but the conversion of device models to
BlockBackend is imminent, and will shorten it to just
blk_legacy_dinfo(dinfo).

Line wrapping muddies the waters a bit.  I also omit tests whether
dinfo->bdrv is null, because it never is.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index feb227f..ca4f855 100644
--- a/hw/block/xen_disk.c
+++ b/hw/block/xen_disk.c
@@ -879,7 +879,7 @@ static int blk_connect(struct XenDevice *xendev)
     } else {
         /* setup via qemu cmdline -> already setup for us */
         xen_be_printf(&blkdev->xendev, 2, "get configured bdrv (cmdline setup)\n");
-        blkdev->bs = blkdev->dinfo->bdrv;
+        blkdev->bs = blk_bs(blk_by_legacy_dinfo(blkdev->dinfo));
         if (bdrv_is_read_only(blkdev->bs) && !readonly) {
             xen_be_printf(&blkdev->xendev, 0, "Unexpected read-only drive");
             blkdev->bs = NULL;