diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/dma.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/dma.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index cd0486597..68ad91520 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -53,6 +53,11 @@ mt76_alloc_txwi(struct mt76_dev *dev) addr = dma_map_single(dev->dma_dev, txwi, dev->drv->txwi_size, DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev->dma_dev, addr))) { + kfree(txwi); + return NULL; + } + t = (struct mt76_txwi_cache *)(txwi + dev->drv->txwi_size); t->dma_addr = addr; @@ -734,16 +739,18 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q) if (!q->ndesc) return; - spin_lock_bh(&q->lock); - do { + spin_lock_bh(&q->lock); buf = mt76_dma_dequeue(dev, q, true, NULL, NULL, &more, NULL); + spin_unlock_bh(&q->lock); + if (!buf) break; mt76_put_page_pool_buf(buf, false); } while (1); + spin_lock_bh(&q->lock); if (q->rx_head) { dev_kfree_skb(q->rx_head); q->rx_head = NULL; |