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register_chrdev_region() return value when there is no device file

Hello,

I am calling register_chrdev_region(dev, MAX_DVB_MINORS, "mydevice") in
a module.

The return of register_chrdev_region(dev, MAX_DEV_MINORS, "mydevice") is 0
even when the device does not exist. (I mean there
is no /dev/mydevice special file).

0 means success.

I want that the init method of my module will print
an error message and will not load the module if
my device special file does not exist.

How can I do it ?


John Q.

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