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authorAnton Vorontsov <avorontsov@ru.mvista.com>2008-02-01 16:22:48 +0300
committerDavid S. Miller <davem@davemloft.net>2008-02-03 15:25:58 +0300
commit80a9fad8e89a23c31bab9c228a88a391c4f8d698 (patch)
tree2c6d22ee53f9fca8a6b0fadc422178397eb7a07e /drivers/net/ucc_geth.c
parentf67c6275185216b47ee50c8c122adee3c562bce7 (diff)
downloadlinux-80a9fad8e89a23c31bab9c228a88a391c4f8d698.tar.xz
ucc_geth: fix module removal
- uccf should be set to NULL to not double-free memory on subsequent calls; - ind_hash_q and group_hash_q lists should be initialized in the probe() function, instead of struct_init() (called by open()), otherwise there will be an oops if ucc_geth_driver removed prior 'ifconfig ethX up'; - add unregister_netdev(); - reorder geth_remove() steps. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ucc_geth.c')
-rw-r--r--drivers/net/ucc_geth.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 4ffd8739f8b7..e41da4670d0b 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -2084,8 +2084,10 @@ static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
if (!ugeth)
return;
- if (ugeth->uccf)
+ if (ugeth->uccf) {
ucc_fast_free(ugeth->uccf);
+ ugeth->uccf = NULL;
+ }
if (ugeth->p_thread_data_tx) {
qe_muram_free(ugeth->thread_dat_tx_offset);
@@ -2305,10 +2307,6 @@ static int ucc_struct_init(struct ucc_geth_private *ugeth)
ug_info = ugeth->ug_info;
uf_info = &ug_info->uf_info;
- /* Create CQs for hash tables */
- INIT_LIST_HEAD(&ugeth->group_hash_q);
- INIT_LIST_HEAD(&ugeth->ind_hash_q);
-
if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
(uf_info->bd_mem_part == MEM_PART_MURAM))) {
if (netif_msg_probe(ugeth))
@@ -3990,6 +3988,10 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
ugeth = netdev_priv(dev);
spin_lock_init(&ugeth->lock);
+ /* Create CQs for hash tables */
+ INIT_LIST_HEAD(&ugeth->group_hash_q);
+ INIT_LIST_HEAD(&ugeth->ind_hash_q);
+
dev_set_drvdata(device, dev);
/* Set the dev->base_addr to the gfar reg region */
@@ -4040,9 +4042,10 @@ static int ucc_geth_remove(struct of_device* ofdev)
struct net_device *dev = dev_get_drvdata(device);
struct ucc_geth_private *ugeth = netdev_priv(dev);
- dev_set_drvdata(device, NULL);
- ucc_geth_memclean(ugeth);
+ unregister_netdev(dev);
free_netdev(dev);
+ ucc_geth_memclean(ugeth);
+ dev_set_drvdata(device, NULL);
return 0;
}