Am Freitag, 9. März 2018, 11:50:47 CET schrieb Arvind Yadav:
> if device_register() returned an error! Always use put_device()
> to give up the reference initialized.
> 
> Arvind Yadav (2):
>   [PATCH 1/2] mtd: use put_device() if device_register fail
>   [PATCH 2/2] mtd: ubi: use put_device() if device_register fail

Uhh, this is not obvious. Does device_register() really always return with a 
reference held in all (error) cases?

Thanks,
//richard

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