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List: git-commits-head
Subject: Staging: rtl8187se: Fix oops and memory poison caused by builtin ieee80211.
From: Linux Kernel Mailing List <linux-kernel () vger ! kernel ! org>
Date: 2009-02-28 2:02:17
Message-ID: 200902280202.n1S22HcO015046 () hera ! kernel ! org
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Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=096c55d1de39c0de526dfeb8a68ba3b0200e5a93
Commit: 096c55d1de39c0de526dfeb8a68ba3b0200e5a93
Parent: 69e09c983e92cc8f4ebb9f145ba3b460f6374558
Author: leandro Costantino <lcostantino@gmail.com>
AuthorDate: Tue Feb 17 11:16:26 2009 -0500
Committer: Greg Kroah-Hartman <gregkh@suse.de>
CommitDate: Fri Feb 27 12:56:23 2009 -0800
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>
---
.../staging/rtl8187se/ieee80211/ieee80211_crypt.c | 19 ++++++++++---------
drivers/staging/rtl8187se/r8180_core.c | 2 +-
2 files changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c \
b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c index af64cfb..7370296 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_crypt.c
@@ -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);
}
diff --git a/drivers/staging/rtl8187se/r8180_core.c \
b/drivers/staging/rtl8187se/r8180_core.c index 9453495..66de5cc 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -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");
}
--
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