block: Split bdrv_new_root() off bdrv_new()

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>

1 files changed, 1 insertions, 1 deletions

diff --git a/blockdev.c b/blockdev.c
index e595910..7608f46 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -523,7 +523,7 @@ static DriveInfo *blockdev_init(const char *file, QDict *bs_opts,
     }
 
     /* init */
-    bs = bdrv_new(qemu_opts_id(opts), errp);
+    bs = bdrv_new_root(qemu_opts_id(opts), errp);
     if (!bs) {
         goto early_err;
     }