[PATCH 00/14] block: deal with errp: part I

[Vladimir Sementsov-Ogievskiy]

Hi all!

I've start to apply scripts/coccinelle/errp-guard.cocci to block
subsystem, but it turned out that in most cases error propagation can be 
simply avoided. So, here are some improvements to block layer error
reporting to avoid error propagation. It's not complete, so its called
part I, I don't want to create huge series.

Vladimir Sementsov-Ogievskiy (14):
  block: return status from bdrv_append and friends
  block: use return status of bdrv_append()
  block: check return value of bdrv_open_child and drop error
    propagation
  blockdev: fix drive_backup_prepare() missed error
  block: drop extra error propagation for bdrv_set_backing_hd
  block/mirror: drop extra error propagation in commit_active_start()
  block/blklogwrites: drop error propagation
  blockjob: return status from block_job_set_speed()
  block/qcow2: qcow2_get_specific_info(): drop error propagation
  block/qcow2-bitmap: improve qcow2_load_dirty_bitmaps() interface
  block/qcow2-bitmap: return startus from
    qcow2_store_persistent_dirty_bitmaps
  block/qcow2: read_cache_sizes: return status value
  block/qcow2: qcow2_do_open: deal with errp
  block/qed: bdrv_qed_do_open: deal with errp

 block/qcow2.h               |  9 +++---
 include/block/block.h       | 12 +++----
 include/block/blockjob.h    |  2 +-
 block.c                     | 50 ++++++++++++++++--------------
 block/backup-top.c          | 20 +++++-------
 block/blkdebug.c            |  6 ++--
 block/blklogwrites.c        | 33 +++++++++-----------
 block/blkreplay.c           |  6 ++--
 block/blkverify.c           | 11 +++----
 block/commit.c              |  5 +--
 block/mirror.c              | 18 +++++------
 block/qcow2-bitmap.c        | 62 +++++++++++++++++--------------------
 block/qcow2.c               | 56 ++++++++++++++-------------------
 block/qed.c                 | 24 ++++++++------
 block/quorum.c              |  6 ++--
 blockdev.c                  |  7 ++---
 blockjob.c                  | 18 +++++------
 tests/test-bdrv-graph-mod.c |  6 ++--
 18 files changed, 159 insertions(+), 192 deletions(-)

-- 
2.21.3