From: Stanislaw Gruszka <sgruszka@redhat.com>
To: netdev@vger.kernel.org
Subject: [PATCH] dl2k: nulify fraginfo after unmap
Date: Wed, 26 Jan 2011 11:45:42 +0100 [thread overview]
Message-ID: <20110126104521.GA2431@redhat.com> (raw)
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>
---
drivers/net/dl2k.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
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 @@ 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];
--
1.7.3.4
next reply other threads:[~2011-01-26 10:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-26 10:45 Stanislaw Gruszka [this message]
2011-01-27 22:24 ` [PATCH] dl2k: nulify fraginfo after unmap David Miller
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