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Subject[PATCH 1/4] Staging: w35und: unregister device from the ieee80211 stack upon ->disconnect()
Date
From: Pekka Enberg <penberg@cs.helsinki.fi>

Impact: fix module removal

This patch fixes an oops when the w35und module is removed from the
kernel and added back.

Reported-by: luoyi <luoyi.ly@gmail.com>
Tested-by: Sandro Bonazzola <sandro.bonazzola@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/staging/winbond/wbusb.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/winbond/wbusb.c b/drivers/staging/winbond/wbusb.c
index 9c3f943..3b2d528 100644
--- a/drivers/staging/winbond/wbusb.c
+++ b/drivers/staging/winbond/wbusb.c
@@ -386,7 +386,7 @@ static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id
if (err)
goto error_free_hw;

- usb_set_intfdata(intf, priv);
+ usb_set_intfdata(intf, dev);

return 0;

@@ -415,10 +415,15 @@ static void wb35_hw_halt(struct wbsoft_priv *adapter)

static void wb35_disconnect(struct usb_interface *intf)
{
- struct wbsoft_priv *priv = usb_get_intfdata(intf);
+ struct ieee80211_hw *hw = usb_get_intfdata(intf);
+ struct wbsoft_priv *priv = hw->priv;

wb35_hw_halt(priv);

+ ieee80211_stop_queues(hw);
+ ieee80211_unregister_hw(hw);
+ ieee80211_free_hw(hw);
+
usb_set_intfdata(intf, NULL);
usb_put_dev(interface_to_usbdev(intf));
}
--
1.6.3


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