Hedging option sell call with futures - Is this risk free?

Consider the following scenario:

One takes an option call sell position now. A week later, the underlying's price hits the strike price of the call sell position, with no signs of abating. One immediately buys future as an hedge. And if the price starts getting below the Strike Price, he squares off the future. 

Is buying future a good strategy to avoid the pains of having to roll over the sell call - which invariably happens at a loss? Are there any hidden costs? Assume that the person doesnt have any margin constraints.

Thanks, PG

It might work but it should be minded if the future floats around the strike price then one has to enter and exit many times which leads to losses including additional burden of charges. Thus making this strategy vulnerable to unwarranted losses in some scenarios.

Many Thanks siva for your comment. PG