tlan: Fix pci memory unmapping

Fix pci unmapping problem introduced by commit id
8953f1282793882a5444924f7a273dc72a43d0a3 "tlan: Fix small (< 64 bytes)
datagram transmissions".

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c
index cf8cdaf..e604982 100644 (file)
--- a/drivers/net/tlan.c
+++ b/drivers/net/tlan.c
@@ -1433,7 +1433,9 @@ static u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int )
                if ( ! bbuf ) {
                        struct sk_buff *skb = TLan_GetSKB(head_list);
                        pci_unmap_single(priv->pciDev, head_list->buffer[0].address,
-                                        skb->len, PCI_DMA_TODEVICE);
+                                        max(skb->len,
+                                            (unsigned int)TLAN_MIN_FRAME_SIZE),
+                                        PCI_DMA_TODEVICE);
                        dev_kfree_skb_any(skb);
                        head_list->buffer[8].address = 0;
                        head_list->buffer[9].address = 0;
@@ -2057,9 +2059,12 @@ static void TLan_FreeLists( struct net_device *dev )
                        list = priv->txList + i;
                        skb = TLan_GetSKB(list);
                        if ( skb ) {
-                               pci_unmap_single(priv->pciDev,
-                                                list->buffer[0].address, skb->len,
-                                                PCI_DMA_TODEVICE);
+                               pci_unmap_single(
+                                       priv->pciDev,
+                                       list->buffer[0].address,
+                                       max(skb->len,
+                                           (unsigned int)TLAN_MIN_FRAME_SIZE),
+                                       PCI_DMA_TODEVICE);
                                dev_kfree_skb_any( skb );
                                list->buffer[8].address = 0;
                                list->buffer[9].address = 0;