diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2013-02-06 12:54:17 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-28 05:38:30 -0800 |
| commit | 481d8b5ca03dafbab105b8a831694a8d9019267d (patch) | |
| tree | a839e3d64d846fe08627edbf1de907ee43cc4535 /drivers/net/wireless | |
| parent | 936f8ea980bdfa57f7e55e49e020e74547329e01 (diff) | |
rtlwifi: rtl8192cu: Fix NULL dereference BUG when using new_id
commit 957f4aca5fa0db69635271bc4621cc0b65b2d590 upstream.
When the new_id entry in /sysfs is used for a foreign USB device, rtlwifi
BUGS with a NULL pointer dereference because the per-driver configuration
data is not available. The probe function has been restructured as
suggested by Ben Hutchings <bhutchings@solarflare.com>.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/rtl8192cu/sw.c | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/rtlwifi/usb.c | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/rtlwifi/usb.h | 3 |
3 files changed, 12 insertions, 4 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c index b7e6607e6b6..6f4f9aa6e3b 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c @@ -363,9 +363,15 @@ static struct usb_device_id rtl8192c_usb_ids[] = { MODULE_DEVICE_TABLE(usb, rtl8192c_usb_ids); +static int rtl8192cu_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + return rtl_usb_probe(intf, id, &rtl92cu_hal_cfg); +} + static struct usb_driver rtl8192cu_driver = { .name = "rtl8192cu", - .probe = rtl_usb_probe, + .probe = rtl8192cu_probe, .disconnect = rtl_usb_disconnect, .id_table = rtl8192c_usb_ids, diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index 1535efda3d5..407ba89df15 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -941,7 +941,8 @@ static struct rtl_intf_ops rtl_usb_ops = { }; int rtl_usb_probe(struct usb_interface *intf, - const struct usb_device_id *id) + const struct usb_device_id *id, + struct rtl_hal_cfg *rtl_hal_cfg) { int err; struct ieee80211_hw *hw = NULL; @@ -976,7 +977,7 @@ int rtl_usb_probe(struct usb_interface *intf, usb_set_intfdata(intf, hw); /* init cfg & intf_ops */ rtlpriv->rtlhal.interface = INTF_USB; - rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_info); + rtlpriv->cfg = rtl_hal_cfg; rtlpriv->intf_ops = &rtl_usb_ops; rtl_dbgp_flag_init(hw); /* Init IO handler */ diff --git a/drivers/net/wireless/rtlwifi/usb.h b/drivers/net/wireless/rtlwifi/usb.h index 5235136f6dd..fb986f98d1d 100644 --- a/drivers/net/wireless/rtlwifi/usb.h +++ b/drivers/net/wireless/rtlwifi/usb.h @@ -157,7 +157,8 @@ struct rtl_usb_priv { int rtl_usb_probe(struct usb_interface *intf, - const struct usb_device_id *id); + const struct usb_device_id *id, + struct rtl_hal_cfg *rtl92cu_hal_cfg); void rtl_usb_disconnect(struct usb_interface *intf); int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message); int rtl_usb_resume(struct usb_interface *pusb_intf); |