corral some wayward N/A fw_version dust bunnies

Round-up some wayward "N/A" fw_version dust bunnies as part of that
clean-up.

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index f7bc310..e5a6d8e 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -1405,8 +1405,9 @@
 	strlcpy(info->version, RTL8169_VERSION, sizeof(info->version));
 	strlcpy(info->bus_info, pci_name(tp->pci_dev), sizeof(info->bus_info));
 	BUILD_BUG_ON(sizeof(info->fw_version) < sizeof(rtl_fw->version));
-	strlcpy(info->fw_version, IS_ERR_OR_NULL(rtl_fw) ? "N/A" :
-	       rtl_fw->version, sizeof(info->fw_version));
+	if (!IS_ERR_OR_NULL(rtl_fw))
+		strlcpy(info->fw_version, rtl_fw->version,
+			sizeof(info->fw_version));
 }
 
 static int rtl8169_get_regs_len(struct net_device *dev)