Revert "usb: dwc3: gadget: always decrement by 1"
This reverts commit 6f8245b4 ("usb: dwc3: gadget: always decrement by 1"). We can't always decrement this value. We should decrement only if the calculation of free slots results in a LINK TRB being among one of the free slots (dequeue < enqueue). Otherwise, if the LINK TRB is not among the free slots then it should not be decremented. Signed-off-by: NJohn Youn <johnyoun@synopsys.com> Signed-off-by: NFelipe Balbi <felipe.balbi@linux.intel.com>
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