enic: fix an endian bug in enic_probe()

"num_vfs" is a u32 but we only use the high 16 bits and the low 16bits
are left as zero.  That isn't a problem for little endian systems but it
will break on big endian ones.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cisco/enic/enic.h

@@ -94,7 +94,7 @@ struct enic {
 	u32 rx_coalesce_usecs;
 	u32 tx_coalesce_usecs;
 #ifdef CONFIG_PCI_IOV
-	u32 num_vfs;
+	u16 num_vfs;
 #endif
 	struct enic_port_profile *pp;
 

drivers/net/ethernet/cisco/enic/enic_main.c

@@ -2370,7 +2370,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
 	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
 	if (pos) {
 		pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF,
-			(u16 *)&enic->num_vfs);
+			&enic->num_vfs);
 		if (enic->num_vfs) {
 			err = pci_enable_sriov(pdev, enic->num_vfs);
 			if (err) {