EF without implementing UoW or repository would be correct?

I have seen many tutorials that implement with EF a repository pattern and UoW, but I do not see it necessary since DbSet and DbContext already are. So I decided to simplify it without the implementation but adding services such as that.

 public class HomeController : Controller
        {
            private IdbContext _dbContextUoW;
            private IClientService _clientService;
            public HomeController (IDbContext dbContextUoW,IClientService clientService){//IoC
                this._dbContextUoW = dbContextUoW;
                this._clientService = clientService;
            }

            public ActionResult Index()
            {
                List<Client> clients;
                clients = List<Client>this._clientService(this._dbContextUoW).GetAll();
                //this._dbContextUoW.SaveChanges()

                return View();
            }
            protected override void Dispose(bool disposing)
              {
                 this._dbContextUoW.Dispose();
                 base.Dispose(disposing);
              }


        }

        public interface IClientService 
        {
            List<Client> GetAll();
        }
        public class ClientService: IClientService
        {
            private IdbContextUoW _dbContextUoW;
            public ClientService(IDbContext dbContextUoW){
                this._dbContextUoW = dbContextUoW;
            }
            public List<Client> GetAll(){
                return ...
            }
        }

Is this implementation correct? am'I on the right track?