usb: dwc3: gadget: Fix null pointer exception
commit 26288448 upstream. In the endpoint interrupt functions dwc3_gadget_endpoint_transfer_in_progress() and dwc3_gadget_endpoint_trbs_complete() will dereference the endpoint descriptor. But it could be cleared in __dwc3_gadget_ep_disable() when accessory disconnected. So we need to check whether it is null or not before dereferencing it. Fixes: f09ddcfc ("usb: dwc3: gadget: Prevent EP queuing while stopping transfers") Cc: stable <stable@vger.kernel.org> Reviewed-by:Jack Pham <quic_jackp@quicinc.com> Signed-off-by:
Albert Wang <albertccwang@google.com> Link: https://lore.kernel.org/r/20211109092642.3507692-1-albertccwang@google.com Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
140e2df4
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