From 5c138dcee7d4a9e68cce546a45968bbf5dbfce80 Mon Sep 17 00:00:00 2001 From: Andrey Borzenkov Date: Sun, 15 Feb 2009 12:51:18 +0300 Subject: [PATCH] orinoco: do not resgister NULL pm_notifier function 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 Acked-by: David Kilroy Signed-off-by: John W. Linville --- drivers/net/wireless/orinoco/orinoco.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c index 45a04faa7818..067d1a9c728b 100644 --- a/drivers/net/wireless/orinoco/orinoco.c +++ b/drivers/net/wireless/orinoco/orinoco.c @@ -3157,8 +3157,20 @@ 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 /********************************************************************/ @@ -3648,8 +3660,7 @@ 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; } @@ -3673,7 +3684,7 @@ 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; -- 2.30.2