[Qemu-devel] [PATCH 0/4] block: Fix error report for wrong file format

[Stefan Weil]

These patches improve the error report if the file format was
specified explicitly (example: -drive file=myfile,format=qcow2)
and the given format does not match the real format.

This fixes those bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=556482
https://bugs.launchpad.net/qemu/+bug/1090600

[PATCH 1/4] block: Add special error code for wrong format
[PATCH 2/4] block: Improve error report for wrong format
[PATCH 3/4] block: Use new error code for wrong format in selected
[PATCH 4/4] block/vdi: Improved return values from vdi_open and