diff --git a/drivers/net/fddi/defxx.c b/drivers/net/fddi/defxx.c
index 7f975a2c8990..b0de8ecd7fe8 100644
--- a/drivers/net/fddi/defxx.c
+++ b/drivers/net/fddi/defxx.c
@@ -533,8 +533,8 @@ static int dfx_register(struct device *bdev)
 	const char *print_name = dev_name(bdev);
 	struct net_device *dev;
 	DFX_board_t	  *bp;			/* board pointer */
-	resource_size_t bar_start[3];		/* pointers to ports */
-	resource_size_t bar_len[3];		/* resource length */
+	resource_size_t bar_start[3] = {0};	/* pointers to ports */
+	resource_size_t bar_len[3] = {0};	/* resource length */
 	int alloc_size;				/* total buffer size used */
 	struct resource *region;
 	int err = 0;
@@ -3697,8 +3697,8 @@ static void dfx_unregister(struct device *bdev)
 	int dfx_bus_pci = dev_is_pci(bdev);
 	int dfx_bus_tc = DFX_BUS_TC(bdev);
 	int dfx_use_mmio = DFX_MMIO || dfx_bus_tc;
-	resource_size_t bar_start[3];		/* pointers to ports */
-	resource_size_t bar_len[3];		/* resource lengths */
+	resource_size_t bar_start[3] = {0};	/* pointers to ports */
+	resource_size_t bar_len[3] = {0};	/* resource lengths */
 	int		alloc_size;		/* total buffer size used */
 
 	unregister_netdev(dev);