Problem with rtl8187

[Larry Finger <Larry.Finger@lwfinger.net>]

Johannes,

I'm chasing a problem with suspend/resume on rtl8187; however, in my testing, I
found that a simple "modprobe -r/modprobe" sequence fails, even though
unplugging/replugging the stick with or without a "modprobe -r" works just fine.

I'm running into the WARN-ON at net/mac80211/tx.c:1184. The start of the
traceback is as follows:

 [<ffffffff8023afce>] warn_on_slowpath+0x58/0x7d
 [<ffffffff803c8c3c>] ? pskb_expand_head+0xe6/0x156
 [<ffffffffa029dbff>] ? __ieee80211_tx+0x40/0x12a [mac80211]
 [<ffffffffa029e98b>] ieee80211_master_start_xmit+0x41c/0x50d [mac80211]
 [<ffffffffa029e8c5>] ? ieee80211_master_start_xmit+0x356/0x50d [mac80211]
 [<ffffffff803cf0a4>] dev_hard_start_xmit+0x214/0x28f
 [<ffffffff803dfb9b>] __qdisc_run+0xf3/0x1fe
 [<ffffffff803cf584>] dev_queue_xmit+0x357/0x48f

The last rtl8187 routine that was started was rtl8187_add_interface. From a
debugging message, I see that info->flags = 0x6B6B6B6B - the SLUB debugging
poison value.  If I interpret the traceback correctly, a workqueue has been
restarted without being properly initialized.

Is there any routine that needs to be called when shutting down that has been
missed?

Thanks,

Larry