[PATCH v4] usb: xhci-mtk: fix unreleased bandwidth data

[Greg Kroah-Hartman]

On Mon, Dec 14, 2020 at 04:39:53PM +0800, Ikjoon Jang wrote:
> xhci-mtk has hooks on add_endpoint() and drop_endpoint() from xhci
> to handle its own sw bandwidth managements and stores bandwidth data
> into internal table every time add_endpoint() is called,
> so when bandwidth allocation fails at one endpoint, all earlier
> allocation from the same interface could still remain at the table.
> 
> This patch adds two more hooks from check_bandwidth() and
> reset_bandwidth(), and make mtk-xhci to releases all failed endpoints
> from reset_bandwidth().
> 
> Fixes: 4b0f7a77fb3c ("usb: xhci-mtk: supports bandwidth scheduling with multi-TT")

This is not a git commit id that is in Linus's tree :(