Button to stop infinite scroll in search result listing?

One of the problems of using infinite scroll on a search result listing page is that the user never can get to the bottom/footer of the page (or any other content after the listing) as long as there are more search results available.

I'm planning to let the user stop the loading of more search results and go to the bottom by clicking a button floating over the list at the bottom of the screen. (Like one of those back-to-top buttons.)

I haven't seen this function anywhere and can't find any information here. Has anyone seen a similar solution? Can you spot any obvious problems?