diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2013-02-06 12:54:17 -0600 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-03-06 03:23:53 +0000 |
| commit | 581e58916c90eb2ba65f6c0a5a1c33ba2238a7bf (patch) | |
| tree | 2c9a141ca12a3714ec5902a82ef832050e11a666 /drivers/net | |
| parent | d66d1873526fa1fb405fef0206035cd3e683a7c2 (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>
[bwh: Backported to 3.2: adjust context, indentation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/net')
| -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 a99be2d0d415..8b634caa97ca 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c @@ -372,9 +372,15 @@ 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 30dd0a960d30..6d4051e9f419 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -894,7 +894,8 @@ static struct rtl_intf_ops rtl_usb_ops = { }; int __devinit 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; @@ -928,7 +929,7 @@ int __devinit 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 d2a63fb3e1e6..4dc4b1c21f50 100644 --- a/drivers/net/wireless/rtlwifi/usb.h +++ b/drivers/net/wireless/rtlwifi/usb.h @@ -158,7 +158,8 @@ struct rtl_usb_priv { int __devinit 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); |