From 79d2b29e8ab2bd460b07ff783d679d6cd3032769 Mon Sep 17 00:00:00 2001 From: Ron Mercer Date: Thu, 12 Feb 2009 16:38:34 -0800 Subject: [PATCH] qlge: bugfix: Add missing rx buf clean index on early exit. The large receive buffer queue is not properly tracking the current index in the case where an early exit occurs. This can happen when a page alloc or dma mapping fails. If this occurs the queue will get out of sync and invalid indexes can be written to the hardware. Signed-off-by: Ron Mercer Signed-off-by: David S. Miller --- drivers/net/qlge/qlge_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c index 3ab03695aaf0..8ea72dc60f79 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -898,6 +898,7 @@ static void ql_update_lbq(struct ql_adapter *qdev, struct rx_ring *rx_ring) lbq_desc->index); lbq_desc->p.lbq_page = alloc_page(GFP_ATOMIC); if (lbq_desc->p.lbq_page == NULL) { + rx_ring->lbq_clean_idx = clean_idx; QPRINTK(qdev, RX_STATUS, ERR, "Couldn't get a page.\n"); return; @@ -907,6 +908,7 @@ static void ql_update_lbq(struct ql_adapter *qdev, struct rx_ring *rx_ring) 0, PAGE_SIZE, PCI_DMA_FROMDEVICE); if (pci_dma_mapping_error(qdev->pdev, map)) { + rx_ring->lbq_clean_idx = clean_idx; put_page(lbq_desc->p.lbq_page); lbq_desc->p.lbq_page = NULL; QPRINTK(qdev, RX_STATUS, ERR, -- 2.20.1