From: Sathya Narayanan Date: Tue, 1 Jul 2008 08:58:05 +0000 (+0200) Subject: ibm_newemac: Fixes kernel crashes when speed of cable connected changes X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ab9b30cc3ec868fab8764d710193107fbeedbd0f;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git ibm_newemac: Fixes kernel crashes when speed of cable connected changes 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 Signed-off-by: Stefan Roese Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 5d2108c5ac7c..ca63fa000ee7 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) &&