diff -Naur linux-2.6.6ct/drivers/net/wireless/prism54/islpci_dev.c linux-2.6.6-01/drivers/net/wireless/prism54/islpci_dev.c
--- linux-2.6.6ct/drivers/net/wireless/prism54/islpci_dev.c	2004-06-05 14:06:30.000000000 +0200
+++ linux-2.6.6-01/drivers/net/wireless/prism54/islpci_dev.c	2004-06-05 14:09:41.000000000 +0200
@@ -676,6 +676,7 @@
 			skb = NULL;
 			goto out_free;
 		}
+		skb_reserve(skb, (4 - (long) skb->data) & 0x03);
 		/* add the new allocated sk_buff to the buffer array */
 		priv->data_low_rx[counter] = skb;
 
diff -Naur linux-2.6.6ct/drivers/net/wireless/prism54/islpci_eth.c linux-2.6.6-01/drivers/net/wireless/prism54/islpci_eth.c
--- linux-2.6.6ct/drivers/net/wireless/prism54/islpci_eth.c	2004-06-05 14:09:07.000000000 +0200
+++ linux-2.6.6-01/drivers/net/wireless/prism54/islpci_eth.c	2004-06-05 14:09:41.000000000 +0200
@@ -440,6 +440,7 @@
 			DEBUG(SHOW_ERROR_MESSAGES, "Error allocating skb \n");
 			break;
 		}
+		skb_reserve(skb, (4 - (long) skb->data) & 0x03);
 		/* store the new skb structure pointer */
 		index = index % ISL38XX_CB_RX_QSIZE;
 		priv->data_low_rx[index] = skb;