[PATCH] ixp2000: register netdevices last

Do not register our netdevices with the kernel until we've actually
finished setting up the hardware and microcode.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 17 insertions, 18 deletions

diff --git a/drivers/net/ixp2000/ixpdev.c b/drivers/net/ixp2000/ixpdev.c
index 216aad1911e6..d9fd57d7a4b3 100644
--- a/drivers/net/ixp2000/ixpdev.c
+++ b/drivers/net/ixp2000/ixpdev.c
@@ -300,15 +300,6 @@ int ixpdev_init(int __nds_count, struct net_device **__nds,
         nds = __nds;
         set_port_admin_status = __set_port_admin_status;
 
-        for (i = 0; i < nds_count; i++) {
-                err = register_netdev(nds[i]);
-                if (err) {
-                        while (--i >= 0)
-                                unregister_netdev(nds[i]);
-                        goto err_out;
-                }
-        }
-
         for (i = 0; i < RX_BUF_COUNT; i++) {
                 void *buf;
 
@@ -317,7 +308,7 @@ int ixpdev_init(int __nds_count, struct net_device **__nds,
                         err = -ENOMEM;
                         while (--i >= 0)
                                 free_page((unsigned long)phys_to_virt(rx_desc[i].buf_addr));
-                        goto err_unregister;
+                        goto err_out;
                 }
                 rx_desc[i].buf_addr = virt_to_phys(buf);
                 rx_desc[i].buf_length = PAGE_SIZE;
@@ -355,7 +346,6 @@ int ixpdev_init(int __nds_count, struct net_device **__nds,
         ixp2000_uengine_load(0, &ixp2400_rx);
         ixp2000_uengine_start_contexts(0, 0xff);
 
-
         /* 256 entries, ring status set means 'empty', base address 0x0800.  */
         ixp2000_reg_write(RING_TX_PENDING_BASE, 0x44000800);
         ixp2000_reg_write(RING_TX_PENDING_HEAD, 0x00000000);
@@ -369,16 +359,25 @@ int ixpdev_init(int __nds_count, struct net_device **__nds,
         ixp2000_uengine_load(1, &ixp2400_tx);
         ixp2000_uengine_start_contexts(1, 0xff);
 
+        for (i = 0; i < nds_count; i++) {
+                err = register_netdev(nds[i]);
+                if (err) {
+                        while (--i >= 0)
+                                unregister_netdev(nds[i]);
+                        goto err_free_tx;
+                }
+        }
+
         return 0;
 
+err_free_tx:
+        for (i = 0; i < TX_BUF_COUNT; i++)
+                free_page((unsigned long)phys_to_virt(tx_desc[i].buf_addr));
+
 err_free_rx:
         for (i = 0; i < RX_BUF_COUNT; i++)
                 free_page((unsigned long)phys_to_virt(rx_desc[i].buf_addr));
 
-err_unregister:
-        for (i = 0; i < nds_count; i++)
-                unregister_netdev(nds[i]);
-
 err_out:
         return err;
 } 
@@ -389,6 +388,9 @@ void ixpdev_deinit(void)
 
         /* @@@ Flush out pending packets.  */
 
+        for (i = 0; i < nds_count; i++)
+                unregister_netdev(nds[i]);
+
         ixp2000_uengine_stop_contexts(1, 0xff);
         ixp2000_uengine_stop_contexts(0, 0xff);
         ixp2000_uengine_reset(0x3);
@@ -398,7 +400,4 @@ void ixpdev_deinit(void)
 
         for (i = 0; i < RX_BUF_COUNT; i++)
                 free_page((unsigned long)phys_to_virt(rx_desc[i].buf_addr));
-
-        for (i = 0; i < nds_count; i++)
-                unregister_netdev(nds[i]);
 }