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authorAndrey Borzenkov <arvidjaar@mail.ru>2009-02-15 04:51:18 -0500
committerJohn W. Linville <linville@tuxdriver.com>2009-02-23 13:17:51 -0500
commit5c138dcee7d4a9e68cce546a45968bbf5dbfce80 (patch)
treec0ce0923c60ee3d4b4a83e5c919564634a0c3555
parent486a87f1e5624096bd1c09e9e716239597d48dca (diff)
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 <arvidjaar@mail.ru> Acked-by: David Kilroy <kilroyd@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/orinoco/orinoco.c19
1 files 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,
3157 3157
3158 return NOTIFY_DONE; 3158 return NOTIFY_DONE;
3159} 3159}
3160
3161static void orinoco_register_pm_notifier(struct orinoco_private *priv)
3162{
3163 priv->pm_notifier.notifier_call = orinoco_pm_notifier;
3164 register_pm_notifier(&priv->pm_notifier);
3165}
3166
3167static void orinoco_unregister_pm_notifier(struct orinoco_private *priv)
3168{
3169 unregister_pm_notifier(&priv->pm_notifier);
3170}
3160#else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */ 3171#else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */
3161#define orinoco_pm_notifier NULL 3172#define orinoco_register_pm_notifier(priv) do { } while(0)
3173#define orinoco_unregister_pm_notifier(priv) do { } while(0)
3162#endif 3174#endif
3163 3175
3164/********************************************************************/ 3176/********************************************************************/
@@ -3648,8 +3660,7 @@ struct net_device
3648 priv->cached_fw = NULL; 3660 priv->cached_fw = NULL;
3649 3661
3650 /* Register PM notifiers */ 3662 /* Register PM notifiers */
3651 priv->pm_notifier.notifier_call = orinoco_pm_notifier; 3663 orinoco_register_pm_notifier(priv);
3652 register_pm_notifier(&priv->pm_notifier);
3653 3664
3654 return dev; 3665 return dev;
3655} 3666}
@@ -3673,7 +3684,7 @@ void free_orinocodev(struct net_device *dev)
3673 kfree(rx_data); 3684 kfree(rx_data);
3674 } 3685 }
3675 3686
3676 unregister_pm_notifier(&priv->pm_notifier); 3687 orinoco_unregister_pm_notifier(priv);
3677 orinoco_uncache_fw(priv); 3688 orinoco_uncache_fw(priv);
3678 3689
3679 priv->wpa_ie_len = 0; 3690 priv->wpa_ie_len = 0;