Panic when detaching Vodafone 3G card

Bruce M Simpson bms at
Tue Sep 9 14:05:45 UTC 2008


I just acquired one of these cards, it attaches as a USB cardbus device.

This is just to say that I can reproduce the problem described here:

The driver support was originally committed here:

...the ubsa driver attaches to the virtual modem port.

If I unplug it, the kernel panics.

The panic is in kobj_delete() (a null pointer reference) and it's on the 
usb detach path. Unfortunately I wasn't able to get a backtrace this 
time around.

PS Does anybody know if ubsa will be ported to the new USB driver framework?


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