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Commit 9eb71079 authored by Stanislaw Gruszka's avatar Stanislaw Gruszka Committed by David S. Miller
Browse files

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: default avatarFrantisek Hanzlik <franta@hanzlici.cz>
Signed-off-by: default avatarStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e0ce4af9

drivers/net/dl2k.c

+2 −2
Original line number Diff line number Diff line
@@ -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];