[patch] netxen: netxen_rom_fast_read() doesn't return -1

[Dan Carpenter]

The error handling is broken here.  netxen_rom_fast_read() returns zero
on success and -EIO on error.  It never returns -1.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c 
b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index fd362b6..9c6eed9 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -852,7 +852,8 @@ netxen_check_options(struct netxen_adapter *adapter)
        ptr32 = (__le32 *)&serial_num;
        offset = NX_FW_SERIAL_NUM_OFFSET;
        for (i = 0; i < 8; i++) {
-               if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
+               err = netxen_rom_fast_read(adapter, offset, &val);
+               if (err) {
                        dev_err(&pdev->dev, "error reading board info\n");
                        adapter->driver_mismatch = 1;
                        return;