qemu-ga: Add 'Null' check and Redefine 'route'

sscanf return values are checked and add 'Null' check for
mandatory parameters. And merged redundant route and
networkroute variables.

Signed-off-by: Dehan Meng <demeng@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Message-ID: <20241107102155.57573-2-kkostiuk@redhat.com>
Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
1 file changed