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dcd_nrf5x: fix race condition #2782

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Aug 29, 2024
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dcd_nrf5x: fix race condition #2782

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6 changes: 3 additions & 3 deletions src/portable/nordic/nrf5x/dcd_nrf5x.c
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Original file line number Diff line number Diff line change
Expand Up @@ -441,11 +441,11 @@ bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t to
bool const control_status = (epnum == 0 && total_bytes == 0 && dir != tu_edpt_dir(NRF_USBD->BMREQUESTTYPE));

if (control_status) {
// Status Phase also requires EasyDMA has to be available as well !!!!
edpt_dma_start(&NRF_USBD->TASKS_EP0STATUS);

// The nRF doesn't interrupt on status transmit so we queue up a success response.
dcd_event_xfer_complete(0, ep_addr, 0, XFER_RESULT_SUCCESS, is_in_isr());

// Status Phase also requires EasyDMA has to be available as well !!!!
edpt_dma_start(&NRF_USBD->TASKS_EP0STATUS);
} else if (dir == TUSB_DIR_OUT) {
xfer->started = true;
if (epnum == 0) {
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