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 <franta@hanzlici.cz>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index e1a8216..c05db60 100644
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -1753,8 +1753,6 @@
/* 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 @@
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];