Serial port probe and remove

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Greg:

Is there any reason why the usb_serial_device_probe() and
usb_serial_device_remove() functions in bus.c go through all this
try_module_get business?  The driver core already insures that the
module is pinned, because these routines are called only while the 
driver is bound to the upper-level usb_serial device.

Alan Stern

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