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Commit cdab23b7 authored by Sathya Perla's avatar Sathya Perla Committed by David S. Miller
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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: default avatarSathya Perla <sathyap@serverengines.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a8e9179a

drivers/net/benet/be_main.c

+1 −1
Original line number Diff line number Diff line
@@ -1010,7 +1010,7 @@ static void be_rx_q_clean(struct be_adapter *adapter) 


	/* Then free posted rx buffer that were not used */

	tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;

	for (; tail != rxq->head; index_inc(&tail, rxq->len)) {

	for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {

		page_info = get_rx_page_info(adapter, tail);

		put_page(page_info->page);

		memset(page_info, 0, sizeof(*page_info));