mac802154: fix destructon ordering for ieee802154 devices

mutex_destroy() must be called before wpan_phy_free(), because it puts the last reference and frees memory. Catched as overwritten poison in kmalloc-2048. Signed-off-by: Konstantin Khlebnikov <[email protected]> Cc: Alexander Smirnov <[email protected]> Cc: Dmitry Eremin-Solenikov <[email protected]> Cc: David S. Miller <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: David S. Miller <[email protected]>
jledet · Dec 14, 2012 · 1e9f954 · 1e9f954
1 parent cfb6f99
commit 1e9f954
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/net/mac802154/ieee802154_dev.c b/net/mac802154/ieee802154_dev.c
@@ -224,9 +224,9 @@ void ieee802154_free_device(struct ieee802154_dev *hw)
 
 	BUG_ON(!list_empty(&priv->slaves));
 
-	wpan_phy_free(priv->phy);
-
 	mutex_destroy(&priv->slaves_mtx);
+
+	wpan_phy_free(priv->phy);
 }
 EXPORT_SYMBOL(ieee802154_free_device);