From: Zhao Liu <zhao1....@intel.com>

Hi list,

This series is the follow-up of my previous @errp related patch set
[1].

The @errp's second restriction (in qapi/error) said:

* Without ERRP_GUARD(), use of the @errp parameter is restricted:
...
* - It should not be passed to error_prepend() or
*   error_append_hint(), because that doesn't work with &error_fatal.
* ERRP_GUARD() lifts these restrictions.

With this requirement, there are many places where ERRP_GUARD() needs to
be added, especially places where there is no way to ensure that the
incoming @errp is pointing to @errp_fatal or not.

To make review easier (and to make sure I'm doing the right thing), I
just post the first part here.

Welcome your feedback!

[1]: 
https://lore.kernel.org/qemu-devel/20240223085653.1255438-1-zhao1....@linux.intel.com/

Thanks and Best Regards,
Zhao
---
Zhao Liu (16):
  error: Add error_vprepend() in comment of ERRP_GUARD() rules
  backends/iommufd: Fix missing ERRP_GUARD() for error_prepend()
  block: Fix missing ERRP_GUARD() for error_prepend()
  block/cbw: Fix missing ERRP_GUARD() for error_prepend()
  block/nbd: Fix missing ERRP_GUARD() for error_prepend()
  block/nvme: Fix missing ERRP_GUARD() for error_prepend()
  block/qcow2-bitmap: Fix missing ERRP_GUARD() for error_prepend()
  block/qcow2: Fix missing ERRP_GUARD() for error_prepend()
  block/qed: Fix missing ERRP_GUARD() for error_prepend()
  block/snapshot: Fix missing ERRP_GUARD() for error_prepend()
  block/vdi: Fix missing ERRP_GUARD() for error_prepend()
  block/vmdk: Fix missing ERRP_GUARD() for error_prepend()
  block/virtio-blk: Fix missing ERRP_GUARD() for error_prepend()
  hw/char/xen_console: Fix missing ERRP_GUARD() for error_prepend()
  hw/core/loader-fit: Fix missing ERRP_GUARD() for error_prepend()
  hw/core/qdev-properties-system: Fix missing ERRP_GUARD() for
    error_prepend()

 backends/iommufd.c               | 1 +
 block.c                          | 4 ++++
 block/copy-before-write.c        | 1 +
 block/nbd.c                      | 1 +
 block/nvme.c                     | 3 +++
 block/qcow2-bitmap.c             | 1 +
 block/qcow2.c                    | 2 ++
 block/qed.c                      | 1 +
 block/snapshot.c                 | 2 ++
 block/vdi.c                      | 1 +
 block/vmdk.c                     | 1 +
 hw/block/virtio-blk.c            | 1 +
 hw/char/xen_console.c            | 1 +
 hw/core/loader-fit.c             | 2 ++
 hw/core/qdev-properties-system.c | 1 +
 include/qapi/error.h             | 2 +-
 16 files changed, 24 insertions(+), 1 deletion(-)

-- 
2.34.1


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