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Date: Tue, 1 Jul 2008 10:58:05 +0200 From: Stefan Roese <sr@...x.de> To: linuxppc-dev@...abs.org, netdev@...r.kernel.org Cc: benh@...nel.crashing.org, Sathya Narayanan <sathyan@...mf1.com> Subject: [PATCH v3] ibm_newemac: Fixes kernel crashes when speed of cable connected changes From: Sathya Narayanan <sathyan@...mf1.com> The descriptor pointers were not initialized to NIL values, so it was poiniting to some random addresses which was completely invalid. This fix takes care of initializing the descriptor to NIL values and clearing the valid descriptors on clean ring operation. Signed-off-by: Sathya Narayanan <sathyan@...mf1.com> Signed-off-by: Stefan Roese <sr@...x.de> --- drivers/net/ibm_newemac/core.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 5d2108c..ca63fa0 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -2719,6 +2719,8 @@ static int __devinit emac_probe(struct of_device *ofdev, /* Clean rings */ memset(dev->tx_desc, 0, NUM_TX_BUFF * sizeof(struct mal_descriptor)); memset(dev->rx_desc, 0, NUM_RX_BUFF * sizeof(struct mal_descriptor)); + memset(dev->tx_skb, 0, NUM_TX_BUFF * sizeof(struct sk_buff *)); + memset(dev->rx_skb, 0, NUM_RX_BUFF * sizeof(struct sk_buff *)); /* Attach to ZMII, if needed */ if (emac_has_feature(dev, EMAC_FTR_HAS_ZMII) && -- 1.5.6.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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