[v6 0/2] virtio-gpu: fix error handling and improve consistency

Honglei Huang posted 2 patches 2 months, 1 week ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20251126020208.2449414-1-honghuan@amd.com
Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>, Dmitry Osipenko <dmitry.osipenko@collabora.com>
There is a newer version of this series
hw/display/virtio-gpu-virgl.c | 4 ++--
hw/display/virtio-gpu.c       | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
[v6 0/2] virtio-gpu: fix error handling and improve consistency
Posted by Honglei Huang 2 months, 1 week ago
This series addresses error handling issues in virtio-gpu and improves
code consistency across the virtio-gpu subsystem.

The first patch fixes a critical bug in virgl_cmd_resource_create_blob()
where an inverted error check causes the function to fail when it should
succeed. This is a standalone bug fix that should be backported.

The second patch improves code consistency by unifying the error checking
style for virtio_gpu_create_mapping_iov() in if-statement contexts across
virtio-gpu files, following the preferred QEMU coding convention.

Changes since v5:
- Reverted changes to virtio-gpu-rutabaga.c to keep CHECK macro usage
  consistent with other error checks in the same file
- Updated patch 2 commit message to clarify that CHECK macro patterns
  in rutabaga.c are intentionally left unchanged

Changes since v4:
- Split the single patch into two separate patches for better clarity
- Separated the critical bug fix from the style consistency improvements
- The bug fix (patch 1) can now be easily identified and backported
- The consistency improvements (patch 2) are clearly marked as cleanup

Changes since v3:
- Extended consistency improvements to virtio-gpu-rutabaga.c
- Changed CHECK(!ret) to CHECK(ret >= 0) and CHECK(!result) to
  CHECK(result >= 0) in rutabaga functions for consistency
- Now covers all virtio-gpu files that use virtio_gpu_create_mapping_iov()

Changes since v2:
- Use 'if (ret < 0)' instead of 'if (ret != 0)' following maintainer's
  feedback on preferred QEMU coding style for error checking functions
  that return 0 on success and negative on error
- Updated all similar usages across virtio-gpu files for consistency
- Expanded scope from single function fix to codebase-wide style consistency

Honglei Huang (2):
  virtio-gpu: fix error handling in virgl_cmd_resource_create_blob
  virtio-gpu: use consistent error checking for
    virtio_gpu_create_mapping_iov

 hw/display/virtio-gpu-virgl.c | 4 ++--
 hw/display/virtio-gpu.c       | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

-- 
2.34.1