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staging: comedi: comedi_buf: comedi_buf_memcpy_from() remove 'offset' param
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Wed, 22 Oct 2014 21:36:51 +0000 (14:36 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 29 Oct 2014 08:01:20 +0000 (16:01 +0800)
This parameter is always passed as '0'. Remove the unnecessary parameter.

This allows removing the unnecessary check of the read_ptr overflow.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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