[ATM]: [he] when transmit fails, unmap the dma regions
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/atm/he.c b/drivers/atm/he.c
index d369130..dd96123 100644
--- a/drivers/atm/he.c
+++ b/drivers/atm/he.c
@@ -2282,6 +2282,8 @@
TPDRQ_MASK(he_readl(he_dev, TPDRQ_B_H)));
if (new_tail == he_dev->tpdrq_head) {
+ int slot;
+
hprintk("tpdrq full (cid 0x%x)\n", cid);
/*
* FIXME
@@ -2289,6 +2291,13 @@
* after service_tbrq, service the backlog
* for now, we just drop the pdu
*/
+ for (slot = 0; slot < TPD_MAXIOV; ++slot) {
+ if (tpd->iovec[slot].addr)
+ pci_unmap_single(he_dev->pci_dev,
+ tpd->iovec[slot].addr,
+ tpd->iovec[slot].len & TPD_LEN_MASK,
+ PCI_DMA_TODEVICE);
+ }
if (tpd->skb) {
if (tpd->vcc->pop)
tpd->vcc->pop(tpd->vcc, tpd->skb);