88b9de105c
mac80211: do not call rate control .tx_status before .rate_init mwifiex: clear previous security setting during association ath9k: stop on rates with idx -1 in ath9k rate control's .tx_status ath9k_hw: prevent writes to const data on AR9160 rt2x00: fix a possible NULL pointer dereference iwlwifi: fix key removal mac80211: zero initialize count field in ieee80211_tx_rate mac80211: Fix a warning on changing to monitor mode from STA brcm80211: smac: fix endless retry of A-MPDU transmissions brcm80211: smac: only print block-ack timeout message at trace level
38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
From 7be081539e540517d5e1fcbf96b8080074afbf08 Mon Sep 17 00:00:00 2001
|
|
From: Gabor Juhos <juhosg@openwrt.org>
|
|
Date: Thu, 16 Feb 2012 20:44:59 +0100
|
|
Subject: [PATCH] rt2x00: fix a possible NULL pointer dereference
|
|
|
|
The 'rt2x00lib_probe_dev' function tries to
|
|
allocate the workqueue. If the allocation
|
|
fails, 'rt2x00_lib_remove_dev' is called on
|
|
the error path. Because 'rt2x00dev->workqueue'
|
|
is NULL in this case, the 'destroy_workqueue'
|
|
call will cause a NULL pointer dereference.
|
|
|
|
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
|
|
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
|
|
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
|
|
Signed-off-by: John W. Linville <linville@tuxdriver.com>
|
|
---
|
|
drivers/net/wireless/rt2x00/rt2x00dev.c | 3 ++-
|
|
1 files changed, 2 insertions(+), 1 deletions(-)
|
|
|
|
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
|
|
index c3e1aa7..d2a1ea9 100644
|
|
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
|
|
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
|
|
@@ -1220,7 +1220,8 @@ void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
|
|
cancel_work_sync(&rt2x00dev->rxdone_work);
|
|
cancel_work_sync(&rt2x00dev->txdone_work);
|
|
}
|
|
- destroy_workqueue(rt2x00dev->workqueue);
|
|
+ if (rt2x00dev->workqueue)
|
|
+ destroy_workqueue(rt2x00dev->workqueue);
|
|
|
|
/*
|
|
* Free the tx status fifo.
|
|
--
|
|
1.7.4.4
|
|
|