remain_bytes,
direction,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
- if (WARN_ON(!dma_desc))
+ if (WARN_ON(!dma_desc)) {
+ spin_unlock_irqrestore(&musb->lock, flags);
return;
+ }
dma_desc->callback = cppi41_dma_callback;
dma_desc->callback_param = channel;