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staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb

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commit a1f165a6b738f0c9d744bad4af7a53909278f5fc upstream.

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

Reported-by: syzbot+6d2e7f6fa90e27be9d62@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1585120006-30042-1-git-send-email-hqjagain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Qiujun Huang 2020-03-25 15:06:46 +08:00 • committed by Greg Kroah-Hartman
commit c44ea4fe73
1 changed files with 1 additions and 0 deletions
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1
drivers/staging/wlan-ng/prism2usb.c
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@ -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