Re: [PATCH] Drop second arg of unregister_chrdev()

[Jonathan Corbet]

> * "name" is trivially unused.
> * Requirement to pass to unregister function anything but cookie you've
>   got from register counterpart is wrong.

Might this, instead, be an opportunity to get rid of the internal
register_chrdev() and unregister_chrdev() calls in favor of the cdev
interface?  register_chrdev() is a bit of a backward-compatibility hack
at this point, and cdevs, in theory, are safer since they won't present
drivers with minor numbers they might not be prepared to handle.

jon

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