chardev: update comment based on the code
The function comment of __register_chrdev_region() is out of date, so update it based on the code. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -88,13 +88,10 @@ static int find_dynamic_major(void)
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/*
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/*
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* Register a single major with a specified minor range.
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* Register a single major with a specified minor range.
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*
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*
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* If major == 0 this functions will dynamically allocate a major and return
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* If major == 0 this function will dynamically allocate an unused major.
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* its number.
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* If major > 0 this function will attempt to reserve the range of minors
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* with given major.
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*
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*
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* If major > 0 this function will attempt to reserve the passed range of
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* minors and will return zero on success.
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*
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* Returns a -ve errno on failure.
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*/
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*/
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static struct char_device_struct *
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static struct char_device_struct *
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__register_chrdev_region(unsigned int major, unsigned int baseminor,
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__register_chrdev_region(unsigned int major, unsigned int baseminor,
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