carl9170: abort tasklet during usb reset
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>
diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index fde918d0..1e7c274 100644
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -367,6 +367,9 @@
{
struct ar9170 *ar = (struct ar9170 *) data;
+ if (!IS_INITIALIZED(ar))
+ return;
+
carl9170_usb_rx_work(ar);
/*