This patch prevents the tasklet code from
interfering while the firmware is down for
an unscheduled maintenance.
Signed-off-by: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/carl9170/usb.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index fde918d..1e7c274 100644
--- 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);
/*
--
1.7.1
--
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