be2net: fix bad queue traversal in be_rx_q_clean()
Using "for(tail != head)" to traverse a queue from tail to head fails in the case of a fully filled queue. Use "for(used != 0)" instead. Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1010,7 +1010,7 @@ static void be_rx_q_clean(struct be_adapter *adapter)
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/* Then free posted rx buffer that were not used */
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/* Then free posted rx buffer that were not used */
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tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
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tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
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for (; tail != rxq->head; index_inc(&tail, rxq->len)) {
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for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
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page_info = get_rx_page_info(adapter, tail);
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page_info = get_rx_page_info(adapter, tail);
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put_page(page_info->page);
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put_page(page_info->page);
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memset(page_info, 0, sizeof(*page_info));
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memset(page_info, 0, sizeof(*page_info));
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