From: Juuso Oikarinen <juuso.oikarinen@xxxxxxxxx>
Removing the wl1271 from the inet addr notifier chain sometimes causes the
registered handler to be called - causing locking problems if the removing
function is called from within the mutex.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@xxxxxxxxx>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@xxxxxxxxx>
Signed-off-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/wl12xx/wl1271_main.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 6f6d366..0bebc45 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -1029,12 +1029,13 @@ static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
struct wl1271 *wl = hw->priv;
int i;
+ unregister_inetaddr_notifier(&wl1271_dev_notifier);
+
mutex_lock(&wl->mutex);
wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
wl1271_info("down");
- unregister_inetaddr_notifier(&wl1271_dev_notifier);
list_del(&wl->list);
WARN_ON(wl->state != WL1271_STATE_ON);
--
1.6.3.3
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