[Bug 212995] A possible divide by zero in qh_urb_transaction

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=212995

--- Comment #3 from Alan Stern (stern@rowland.harvard.edu) ---
The code _does_ make this check.  See usb_submit_urb(); near the start it does:

        ep = usb_pipe_endpoint(dev, urb->pipe);
        if (!ep)
                return -ENOENT;

Now if you want to make this a little clearer, you could submit a patch that
changes the code in qh_urb_transaction() to do this:

maxpacket = usb_endpoint_maxp(&urb->ep->desc);

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