[PATCH-for-5.2 v2 0/2] block/block-backend: Let blk_attach_dev() provide helpful error

[Philippe Mathieu-Daudé]

A pair of patches which helps me debug an issue with block
drive already attached.

Suggestions to correctly/better use the Error API welcome, in
particular in qdev-properties-system::set_drive_helper().

Since v1:
- Rebased after 668f62ec62 ("error: Eliminate error_propagate()")

Philippe Mathieu-Daudé (2):
  block/block-backend: Trace blk_attach_dev()
  block/block-backend: Let blk_attach_dev() provide helpful error

 include/sysemu/block-backend.h   |  2 +-
 block/block-backend.c            | 12 +++++++++++-
 hw/block/fdc.c                   |  4 +---
 hw/block/swim.c                  |  4 +---
 hw/block/xen-block.c             |  5 +++--
 hw/core/qdev-properties-system.c | 16 +++++++++-------
 hw/ide/qdev.c                    |  4 +---
 hw/scsi/scsi-disk.c              |  4 +---
 block/trace-events               |  1 +
 9 files changed, 29 insertions(+), 23 deletions(-)

-- 
2.21.3