diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index 3d95fa20cd88..7a952fe60be2 100644
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -540,7 +540,7 @@ static int __devinit sis900_probe(struct pci_dev *pci_dev,
 	printk("%2.2x.\n", net_dev->dev_addr[i]);
 
 	/* Detect Wake on Lan support */
-	ret = inl(CFGPMC & PMESP);
+	ret = (inl(net_dev->base_addr + CFGPMC) & PMESP) >> 27;
 	if (netif_msg_probe(sis_priv) && (ret & PME_D3C) == 0)
 		printk(KERN_INFO "%s: Wake on LAN only available from suspend to RAM.", net_dev->name);
 
@@ -2040,7 +2040,7 @@ static int sis900_set_wol(struct net_device *net_dev, struct ethtool_wolinfo *wo
 
 	if (wol->wolopts == 0) {
 		pci_read_config_dword(sis_priv->pci_dev, CFGPMCSR, &cfgpmcsr);
-		cfgpmcsr |= ~PME_EN;
+		cfgpmcsr &= ~PME_EN;
 		pci_write_config_dword(sis_priv->pci_dev, CFGPMCSR, cfgpmcsr);
 		outl(pmctrl_bits, pmctrl_addr);
 		if (netif_msg_wol(sis_priv))