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carl9170: abort tasklet during usb reset
authorChristian Lamparter <chunkeey@googlemail.com>
Fri, 17 Sep 2010 20:47:28 +0000 (22:47 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 21 Sep 2010 15:05:23 +0000 (11:05 -0400)
This patch prevents the tasklet code from
interfering while the firmware is down for
an unscheduled maintenance.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/ath/carl9170/usb.c patch | blob | blame | history

diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index fde918d0120bdf19b1ccd718c7378f772d85ba7c..1e7c2748d85afc5a3cc5d40d44b2d5bed185622d 100644 (file)
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -367,6 +367,9 @@ static void carl9170_usb_tasklet(unsigned long data)
 {
        struct ar9170 *ar = (struct ar9170 *) data;
 
+       if (!IS_INITIALIZED(ar))
+               return;
+
        carl9170_usb_rx_work(ar);
 
        /*