The return value is only used for error report before this patch,
so change the function protype to return void.
Signed-off-by: Wenchao Xia <address@hidden>
---
block/qcow2-snapshot.c | 30 +++++++++++++++++++++++++-----
block/qcow2.h | 4 +++-
block/rbd.c | 19 ++++++++++---------
block/sheepdog.c | 28 ++++++++++++++++++----------
block/snapshot.c | 19 +++++++++++++------
blockdev.c | 10 ++++------
include/block/block_int.h | 5 +++--
include/block/snapshot.h | 5 +++--
qemu-img.c | 10 ++++++----
savevm.c | 12 ++++++++----
10 files changed, 93 insertions(+), 49 deletions(-)