Re: [PATCH] USB: serial: Enforce USB driver and USB serial driver match

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Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes:

> Maybe the same thing would have happened in 3.3, which didn't have the 
> new registration code.  Can you test it?

This is what happens in 3.3.7:

May 29 20:51:40 nemi kernel: [   97.008728] bus: 'usb': driver_probe_device: matched device 5-4:1.3 with driver usbserial_generic
May 29 20:51:40 nemi kernel: [   97.008735] bus: 'usb': really_probe: probing driver usbserial_generic with device 5-4:1.3
May 29 20:51:40 nemi kernel: [   97.008761] usbserial_generic: probe of 5-4:1.3 rejects match -19
May 29 20:51:40 nemi kernel: [   97.008773] bus: 'usb': driver_probe_device: matched device 5-4:1.3 with driver sierra
May 29 20:51:40 nemi kernel: [   97.008780] bus: 'usb': really_probe: probing driver sierra with device 5-4:1.3
May 29 20:51:40 nemi kernel: [   97.008802] sierra 5-4:1.3: Sierra USB modem converter detected

So the usbserial_generic driver is probed first there as well, but the
probe fails and everything is fine.


Bjørn
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