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Staging: rtl8187se: Fix oops and memory poison caused by builtin ieee80211.

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when modprobe and removing rtl8187se ( just for testing, i do not have
that card , and oops and a memory poison error happens on the builtin
ieee80211 of that driver.  I dont know if they will port it to the
current ieeee80221 instead of the builtin ones, but just in case i
attach a proposed fix for that problem.

- Change for loop on ieee80211_crypto_deinit for list_for_each_safe to
  remove items. Is there an spinlock needed here?
- Call ieee80211_crypto_deinit after exiting all registerd crypto protocols.


Signed-off-by: Costantino Leandro <lcostantino@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
leandro Costantino 2009-02-17 11:16:26 -05:00 committed by Greg Kroah-Hartman
parent 69e09c983e
commit 096c55d1de
2 changed files with 11 additions and 10 deletions
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19
drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
View File

@ -234,20 +234,21 @@ out:
void ieee80211_crypto_deinit(void)
{
struct list_head *ptr, *n;
struct ieee80211_crypto_alg *alg = NULL;
if (hcrypt == NULL)
return;
for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs;
ptr = n, n = ptr->next) {
struct ieee80211_crypto_alg *alg =
(struct ieee80211_crypto_alg *) ptr;
list_del(ptr);
printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm "
"'%s' (deinit)\n", alg->ops->name);
kfree(alg);
list_for_each_safe(ptr, n, &hcrypt->algs) {
alg = list_entry(ptr, struct ieee80211_crypto_alg, list);
if (alg) {
list_del(ptr);
printk(KERN_DEBUG
"ieee80211_crypt: unregistered algorithm '%s' (deinit)\n",
alg->ops->name);
kfree(alg);
}
}
kfree(hcrypt);
}

2
drivers/staging/rtl8187se/r8180_core.c
View File

@ -6161,10 +6161,10 @@ static void __exit rtl8180_pci_module_exit(void)
{
pci_unregister_driver (&rtl8180_pci_driver);
rtl8180_proc_module_remove();
ieee80211_crypto_deinit();
ieee80211_crypto_tkip_exit();
ieee80211_crypto_ccmp_exit();
ieee80211_crypto_wep_exit();
ieee80211_crypto_deinit();
DMESG("Exiting");
}