From: Luciano Coelho Date: Mon, 23 Nov 2009 21:22:15 +0000 (+0200) Subject: wl1271: fix the inetdev notifier callback return values X-Git-Tag: v3.12-rc1~12159^2~2^2~56 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=17d7265c7582af77357bd31884cef26f9f802313;p=kernel%2Fkernel-generic.git wl1271: fix the inetdev notifier callback return values The wl1271_dev_notify() was returning 0 or -ENODEV, when it should return NOTIFY_* instead. Now we use NOTIFY_DONE when we didn't handle the event or NOTIFY_OK when we have handled it. For inetdev notifications, it doesn't matter whether we use NOTIFY_DONE or NOTIFY_OK, because it ignores the return value of the call to blocking_notifier_call_chain(). But the notify.h header says that NOTIFY_DONE is "Don't care" and NOTIFY_OK is "Suits me", so that seems to be the right way to do it. Reported-by: Johannes Berg Signed-off-by: Luciano Coelho Reviewed-by: Juuso Oikarinen Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c index 90916ed..c8652ee 100644 --- a/drivers/net/wireless/wl12xx/wl1271_main.c +++ b/drivers/net/wireless/wl12xx/wl1271_main.c @@ -815,15 +815,15 @@ static int wl1271_dev_notify(struct notifier_block *me, unsigned long what, wdev = dev->ieee80211_ptr; if (wdev == NULL) - return -ENODEV; + return NOTIFY_DONE; wiphy = wdev->wiphy; if (wiphy == NULL) - return -ENODEV; + return NOTIFY_DONE; hw = wiphy_priv(wiphy); if (hw == NULL) - return -ENODEV; + return NOTIFY_DONE; /* Check that the interface is one supported by this driver. */ wl_temp = hw->priv; @@ -832,7 +832,7 @@ static int wl1271_dev_notify(struct notifier_block *me, unsigned long what, break; } if (wl == NULL) - return -ENODEV; + return NOTIFY_DONE; /* Get the interface IP address for the device. "ifa" will become NULL if: @@ -868,7 +868,7 @@ static int wl1271_dev_notify(struct notifier_block *me, unsigned long what, out: mutex_unlock(&wl->mutex); - return ret; + return NOTIFY_OK; } static struct notifier_block wl1271_dev_notifier = {