From 9eb710797a21fa4a9e09ae9c86c4b3ec9d291c2d Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Wed, 26 Jan 2011 00:45:42 +0000 Subject: [PATCH] dl2k: nulify fraginfo after unmap Patch fixes: "DMA-API: device driver tries to free an invalid DMA memory address" warning reported here: https://bugzilla.redhat.com/show_bug.cgi?id=639824 Reported-by: Frantisek Hanzlik Signed-off-by: Stanislaw Gruszka Signed-off-by: David S. Miller --- drivers/net/dl2k.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c index e1a8216ff692..c05db6046050 100644 --- a/drivers/net/dl2k.c +++ b/drivers/net/dl2k.c @@ -1753,8 +1753,6 @@ rio_close (struct net_device *dev) /* Free all the skbuffs in the queue. */ for (i = 0; i < RX_RING_SIZE; i++) { - np->rx_ring[i].status = 0; - np->rx_ring[i].fraginfo = 0; skb = np->rx_skbuff[i]; if (skb) { pci_unmap_single(np->pdev, @@ -1763,6 +1761,8 @@ rio_close (struct net_device *dev) dev_kfree_skb (skb); np->rx_skbuff[i] = NULL; } + np->rx_ring[i].status = 0; + np->rx_ring[i].fraginfo = 0; } for (i = 0; i < TX_RING_SIZE; i++) { skb = np->tx_skbuff[i]; -- 2.20.1