staging: comedi: pcl816: tidy up the analog input (*insn_read)
For aesthetics, move this function out of the async command support code. For safety, the INT request (end-of-conversion flag) should be cleared before doing each conversion and after the final data sample is read. This driver does that but it's a bit awkward with the initial clear being outside the for loop that reads the samples. Refactor the function a bit so it's more like the pcl818 driver and we can use common code to clear the flag for a timeout and after the last sample. Do a bit of other tidying up during the move. 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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