On 04/13/2017 03:34 PM, Max Reitz wrote:
> After storing the creation options for the new image into @opts, we
> fetch some things for our own information, like the backing file name,
> or whether to use encryption or preallocation.
> 
> With the -n parameter, there will not be any creation options; this is
> not too bad because this just means that querying a NULL @opts will
> always return the default value.
> 
> However, we also use @opts for the --object options. Therefore, @opts is
> not necessarily NULL if -n was specified; instead, it may contain those
> options. In practice, this probably does not cause any problems because
> there most likely is no object that supports any of the parameters we
> query here, but this is neither something we should rely on nor does
> this variable reuse make the code very nice to read.
> 
> Therefore, just use an own variable for the --object options.
> 
> Cc: qemu-stable <qemu-stable@nongnu.org>
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  qemu-img.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 

Reviewed-by: Eric Blake <eblake@redhat.com>

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org