diff options
| author | Gertjan van Wingerde <gwingerde@gmail.com> | 2011-04-18 17:32:13 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-19 23:39:45 +0400 |
| commit | e01ae27f8ce6bd3ee26ef33c704f62449ce8233b (patch) | |
| tree | 28c022b0e755e244e4834f741d2bfce600606624 /drivers/net/wireless/rt2x00/rt2x00usb.c | |
| parent | ce2919c9fffe2aa52f9c3e327176d03764dbf9b5 (diff) | |
| download | linux-e01ae27f8ce6bd3ee26ef33c704f62449ce8233b.tar.xz | |
rt2x00: Allow dynamic addition of PCI/USB IDs.
Both USB and PCI drivers allow a system administrator to dynamically add
USB/PCI IDs to the device table that a driver supports via the
/sys/bus/{usb,pci,pci_express}/drivers/<driver-name>/new_id files.
However, for the rt2x00 drivers using this method currently crashes the
system with a NULL pointer failure.
This is due to the set-up of rt2x00 where the probe functions require a
rt2x00_ops structure in the driver_info field of the probed device. As
this field is empty for the dynamically added devices this fails for
these devices.
Fix this by introducing driver-specific probe wrappers that do nothing
but calling the bus-specific probe functions with the rt2x00_ops structure
as an argument, rather than depending on the driver_info field.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00usb.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index 9957579248c4..570184ee163c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -791,10 +791,9 @@ exit: } int rt2x00usb_probe(struct usb_interface *usb_intf, - const struct usb_device_id *id) + const struct rt2x00_ops *ops) { struct usb_device *usb_dev = interface_to_usbdev(usb_intf); - struct rt2x00_ops *ops = (struct rt2x00_ops *)id->driver_info; struct ieee80211_hw *hw; struct rt2x00_dev *rt2x00dev; int retval; |