With DEBUG_NOTIFIERS it results in
[11330.890966] WARNING: at /home/bor/src/linux-git/kernel/notifier.c:88
notifier_call_chain+0x91/0xa0()
[11330.890977] Hardware name: PORTEGE 4000
[11330.890983] Invalid notifier called! ...
Without DEBUG_NOTIFIERS it most likely crashes on NULL pointer.
Signed-off-by: Andrey Borzenkov <arvidjaar@xxxxxxx>
---
This condition is triggered by default config options so it is 2.6.29
material. Patch is intentionally against 2.6.29 base and not against
wireless-next.
drivers/net/wireless/orinoco/orinoco.c | 19 +++++++++++++++----
1 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c
index 6514e46..728fd3f 100644
--- a/drivers/net/wireless/orinoco/orinoco.c
+++ b/drivers/net/wireless/orinoco/orinoco.c
@@ -3158,8 +3158,20 @@ static int orinoco_pm_notifier(struct notifier_block *notifier,
return NOTIFY_DONE;
}
+
+static void orinoco_register_pm_notifier(struct orinoco_private *priv)
+{
+ priv->pm_notifier.notifier_call = orinoco_pm_notifier;
+ register_pm_notifier(&priv->pm_notifier);
+}
+
+static void orinoco_unregister_pm_notifier(struct orinoco_private *priv)
+{
+ unregister_pm_notifier(&priv->pm_notifier);
+}
#else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */
-#define orinoco_pm_notifier NULL
+#define orinoco_register_pm_notifier(priv) do { } while(0)
+#define orinoco_unregister_pm_notifier(priv) do { } while(0)
#endif
/********************************************************************/
@@ -3653,8 +3665,7 @@ struct net_device
priv->cached_fw = NULL;
/* Register PM notifiers */
- priv->pm_notifier.notifier_call = orinoco_pm_notifier;
- register_pm_notifier(&priv->pm_notifier);
+ orinoco_register_pm_notifier(priv);
return dev;
}
@@ -3678,7 +3689,7 @@ void free_orinocodev(struct net_device *dev)
kfree(rx_data);
}
- unregister_pm_notifier(&priv->pm_notifier);
+ orinoco_unregister_pm_notifier(priv);
orinoco_uncache_fw(priv);
priv->wpa_ie_len = 0;
--
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