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Message-Id: <20200331085439.782195867@linuxfoundation.org>
Date: Tue, 31 Mar 2020 10:59:33 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
syzbot+6d2e7f6fa90e27be9d62@...kaller.appspotmail.com,
Qiujun Huang <hqjagain@...il.com>
Subject: [PATCH 5.5 159/170] staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb
From: Qiujun Huang <hqjagain@...il.com>
commit a1f165a6b738f0c9d744bad4af7a53909278f5fc upstream.
We should cancel hw->usb_work before kfree(hw).
Reported-by: syzbot+6d2e7f6fa90e27be9d62@...kaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@...il.com>
Cc: stable <stable@...r.kernel.org>
Link: https://lore.kernel.org/r/1585120006-30042-1-git-send-email-hqjagain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/staging/wlan-ng/prism2usb.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/staging/wlan-ng/prism2usb.c
+++ b/drivers/staging/wlan-ng/prism2usb.c
@@ -180,6 +180,7 @@ static void prism2sta_disconnect_usb(str
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
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