From: Sathya Narayanan <[EMAIL PROTECTED]>
This patch addresses the memory leak happenning in drivers transmit queue
under heavy load condition. Once the transmit queue becomes full, driver
does an automatic wrapup of queue. During which the untransmitted SKB's are
lost without getting freed up.
Signed-off-by: Sathya Narayanan <[EMAIL PROTECTED]>
Signed-off-by: Stefan Roese <[EMAIL PROTECTED]>
---
drivers/net/ibm_newemac/core.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
index aa407b2..ee868b6 100644
--- a/drivers/net/ibm_newemac/core.c
+++ b/drivers/net/ibm_newemac/core.c
@@ -1328,6 +1328,13 @@ static int emac_start_xmit(struct sk_buff *skb, struct
net_device *ndev)
DBG2(dev, "xmit(%u) %d" NL, len, slot);
+ if (dev->tx_skb[slot] && dev->tx_desc[slot].data_ptr) {
+ dev_kfree_skb(dev->tx_skb[slot]);
+ dev->tx_skb[slot] = NULL;
+ dev->tx_cnt--;
+ ++dev->estats.tx_dropped;
+ }
+
dev->tx_skb[slot] = skb;
dev->tx_desc[slot].data_ptr = dma_map_single(&dev->ofdev->dev,
skb->data, len,
--
1.5.6
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