netxen: fix error codes in for tools access

Use -EIO or -EINVAL as error codes, these can get passed up
to applications (tools).

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index a524844..d8c4b70 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -832,6 +832,12 @@
 		goto request_fw;
 	}
 
+	if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
+		/* No file firmware for the time being */
+		fw_type = NX_FLASH_ROMIMAGE;
+		goto done;
+	}
+
 	fw_type = netxen_p3_has_mn(adapter) ?
 		NX_P3_MN_ROMIMAGE : NX_P3_CT_ROMIMAGE;