ar9170usb and module link in sysfs?

ar9170usb and module link in sysfs?

[Andrey Yurovsky]

I'm curious about the ar9170usb driver and its 'module' links (or
rather, lack there of) in sysfs.  For other drivers, I can look up a
wlanN interface's module by doing looking at
device/driver/module/drivers:

# ls /sys/class/net/wlan0/device/driver/module/drivers/
pci:ath5k
# ls /sys/class/net/wlan1/device/driver/module/drivers/
usb:zd1211rw

For ar9170usb, the driver directory doesn't have a module subdirectory
and I can't seem to find a link to /sys/bus/usb/drivers/ar9170usb via
/sys/class/wlanN like I'd expect to.  Is this normal or does ar9170usb
do something different with respect to sysfs that I'm missing?
Thanks,

  -Andrey

[PATCH] ar9170usb: module link in sysfs

[Christian Lamparter]

Andrey Yurovsky reported that the driver forwarded erroneously the
parent device structure instead of the real thing, which of course
led to some dodgy sysfs links (at least?).

Signed-off-by: Christian Lamparter <chunkeey@web.de>
---
your usb(core) subsystem is probably built-in (rather than a module?),
so you won't have a "module" entry there.

BTW: currently, I don't have a device, please test!
---
diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c
index 754b1f8..1aec7af 100644
--- a/drivers/net/wireless/ath/ar9170/usb.c
+++ b/drivers/net/wireless/ath/ar9170/usb.c
@@ -779,7 +779,7 @@ static int ar9170_usb_probe(struct usb_interface *intf,
 	aru->req_one_stage_fw = ar9170_requires_one_stage(id);
 
 	usb_set_intfdata(intf, aru);
-	SET_IEEE80211_DEV(ar->hw, &udev->dev);
+	SET_IEEE80211_DEV(ar->hw, &intf->dev);
 
 	init_usb_anchor(&aru->rx_submitted);
 	init_usb_anchor(&aru->tx_pending);