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wifi: mt76: dma: free rx_head in mt76_dma_rx_cleanup

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Free rx_head skb in mt76_dma_rx_cleanup routine in order to avoid
possible memory leak at module unload.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi
2023-01-01 12:47:57 +01:00
committed by Felix Fietkau
parent da5b4d93e1
commit 1b88b47e89
1 changed files with 7 additions and 6 deletions
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drivers/net/wireless/mediatek/mt76/dma.c
+7 -6
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@@ -721,6 +721,7 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q)
return;
spin_lock_bh(&q->lock);
do {
buf = mt76_dma_dequeue(dev, q, true, NULL, NULL, &more, NULL);
if (!buf)
@@ -728,6 +729,12 @@ mt76_dma_rx_cleanup(struct mt76_dev *dev, struct mt76_queue *q)
skb_free_frag(buf);
} while (1);
if (q->rx_head) {
dev_kfree_skb(q->rx_head);
q->rx_head = NULL;
}
spin_unlock_bh(&q->lock);
if (!q->rx_page.va)
@@ -753,12 +760,6 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid)
mt76_dma_rx_cleanup(dev, q);
mt76_dma_sync_idx(dev, q);
mt76_dma_rx_fill(dev, q);
if (!q->rx_head)
return;
dev_kfree_skb(q->rx_head);
q->rx_head = NULL;
}
static void