Re: [PATCH] contrib/vhost-user-blk: Clean up deallocation of VuVirtqElement

[Markus Armbruster <armbru@redhat.com>]

Raphael Norwitz <raphael.norwitz@nutanix.com> writes:

> On Thu, Jun 30, 2022 at 10:52:19AM +0200, Markus Armbruster wrote:
>> We allocate VuVirtqElement with g_malloc() in
>> virtqueue_alloc_element(), but free it with free() in
>> vhost-user-blk.c.  Harmless, but use g_free() anyway.
>> 
>> One of the calls is guarded by a "not null" condition.  Useless,
>> because it cannot be null (it's dereferenced right before), and even
>
> NIT: if it

Yes.

>> it it could be, free() and g_free() do the right thing.  Drop the
>> conditional.
>> 
>
> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
>
>> Fixes: Coverity CID 1490290
>> Signed-off-by: Markus Armbruster <armbru@redhat.com>
>> ---
>> Not even compile-tested, because I can't figure out how this thing is
>> supposed to be built.  Its initial commit message says "make
>> vhost-user-blk", but that doesn't work anymore.
>> 
>
> make contrib/vhost-user-blk/vhost-user-blk works for me.

Could we use a contrib/README with an explanation what "contrib" means,
and how to build and use the stuff there?

Thanks!