Hi hi,
Smatch prints a warning about the new net2272 driver.
drivers/usb/gadget/net2272.c +1584 net2272_handle_dma(34)
error: potential null derefence 'req'.
1581 /* device-to-host transfer completed */
1582 if (ep->is_in) {
1583 /* validate a short packet or zlp if necessary */
1584 if ((req->req.length % ep->ep.maxpacket != 0) ||
^^^^^
Smatch complains that "req" can be NULL here. It is NULL if
the ep->queue is empty above.
1585 req->req.zero)
1586 set_fifo_bytecount(ep, 0);
1587
1588 net2272_done(ep, req, 0);
1589 if (!list_empty(&ep->queue)) {
^^^^^^^^^^^^^^^^^^^^^
And it looks like the ep->queue can be NULL down this path.
1590 req = list_entry(ep->queue.next,
regards,
dan carpenter
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