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

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>
hifive-unleashed-5.1
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) void ieee80211_crypto_deinit(void)
{ {
struct list_head *ptr, *n; struct list_head *ptr, *n;
struct ieee80211_crypto_alg *alg = NULL;
if (hcrypt == NULL) if (hcrypt == NULL)
return; return;
for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs; list_for_each_safe(ptr, n, &hcrypt->algs) {
ptr = n, n = ptr->next) { alg = list_entry(ptr, struct ieee80211_crypto_alg, list);
struct ieee80211_crypto_alg *alg = if (alg) {
(struct ieee80211_crypto_alg *) ptr; list_del(ptr);
list_del(ptr); printk(KERN_DEBUG
printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm " "ieee80211_crypt: unregistered algorithm '%s' (deinit)\n",
"'%s' (deinit)\n", alg->ops->name); alg->ops->name);
kfree(alg); kfree(alg);
}
} }
kfree(hcrypt); 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); pci_unregister_driver (&rtl8180_pci_driver);
rtl8180_proc_module_remove(); rtl8180_proc_module_remove();
ieee80211_crypto_deinit();
ieee80211_crypto_tkip_exit(); ieee80211_crypto_tkip_exit();
ieee80211_crypto_ccmp_exit(); ieee80211_crypto_ccmp_exit();
ieee80211_crypto_wep_exit(); ieee80211_crypto_wep_exit();
ieee80211_crypto_deinit();
DMESG("Exiting"); DMESG("Exiting");
} }