[PATCH] staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb

[Qiujun Huang]

We should cancel hw->usb_work before kfree(hw).

Reported-by: syzbot+6d2e7f6fa90e27be9d62@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Qiujun Huang <hqjagain@xxxxxxxxx>
---
 drivers/staging/wlan-ng/prism2usb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/wlan-ng/prism2usb.c b/drivers/staging/wlan-ng/prism2usb.c
index 352556f..4689b21 100644
--- a/drivers/staging/wlan-ng/prism2usb.c
+++ b/drivers/staging/wlan-ng/prism2usb.c
@@ -180,6 +180,7 @@ static void prism2sta_disconnect_usb(struct usb_interface *interface)
 
 		cancel_work_sync(&hw->link_bh);
 		cancel_work_sync(&hw->commsqual_bh);
+		cancel_work_sync(&hw->usb_work);
 
 		/* Now we complete any outstanding commands
 		 * and tell everyone who is waiting for their
-- 
1.8.3.1