bdrv_is_allocated() returns tri-state, not just bool, although there were several callers using it as a bool. Fix them to either propagate the error or to document why treatment of failure like allocation is okay.
[Found during a larger effort to convert bdrv_get_block_status to be byte-based for 2.10] Eric Blake (3): backup: React to bdrv_is_allocated() errors vvfat: React to bdrv_is_allocated() errors migration: Document handling of bdrv_is_allocated() errors block/backup.c | 14 ++++++++++---- block/vvfat.c | 22 +++++++++++++++++++--- migration/block.c | 2 ++ 3 files changed, 31 insertions(+), 7 deletions(-) -- 2.9.3
