[libvirt PATCH] qemu: Avoid segfault when driver initialization fails

[Michal Privoznik]

On 1/26/21 5:08 PM, Jiri Denemark wrote:
> In case qemuStateInitialize fails for any reason (e.g., a typo in
> qemu.conf), it properly cleans up after itself and sets qemu_driver back
> to NULL. A tiny bit later the daemon asks all drivers to shutdown by
> calling their stateShutdown* APIs. But the implementation of these APIs
> in QEMU driver expected qemu_driver to be initialized at this point
> causing a segfault otherwise.
> 
> Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
> ---
>   src/qemu/qemu_driver.c | 6 ++++++
>   1 file changed, 6 insertions(+)

This patch looks familiar :-)

https://www.redhat.com/archives/libvir-list/2021-January/msg00955.html

I'm working on alternative approach. Will send shortly.

Michal