ipg: initialize Rx buffers correctly

A previous patch resulted in the initialization of the Rx buffers
being skipped.

Signed-off-by: David Vrabel <dvrabel@cantab.net>

--- linux-source-2.6.16.orig/drivers/net/ipg.c	2006-05-20 21:38:44.604788258 +0100
+++ linux-source-2.6.16/drivers/net/ipg.c	2006-05-20 21:39:14.298898552 +0100
@@ -1298,18 +1298,16 @@
 	sp->RxBuffNotReady = 0;
 
 	for (i = 0; i < IPG_RFDLIST_LENGTH; i++) {
-		if (!sp->RxBuff[i])
-			continue;
-
-		/* Free any allocated receive buffers. */
-		pci_unmap_single(sp->pdev,
-				 sp->RxBuffDMAhandle[i].dmahandle,
-				 sp->RxBuffDMAhandle[i].len,
-				 PCI_DMA_FROMDEVICE);
-
-		IPG_DEV_KFREE_SKB(sp->RxBuff[i]);
-		sp->RxBuff[i] = NULL;
+		if (sp->RxBuff[i]) {
+			/* Free any allocated receive buffers. */
+			pci_unmap_single(sp->pdev,
+					 sp->RxBuffDMAhandle[i].dmahandle,
+					 sp->RxBuffDMAhandle[i].len,
+					 PCI_DMA_FROMDEVICE);
 
+			IPG_DEV_KFREE_SKB(sp->RxBuff[i]);
+			sp->RxBuff[i] = NULL;
+		}
 		/* Clear out the RFS field. */
 		sp->RFDList[i].RFS = 0x0000000000000000;