staging: comedi: pcl818: factor out the common "dropout" detect code

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The DMA, FIFO, and EOC interrupt handlers all have common code that
checks for channel dropout when running an async command.

Factor this common code into a helper function.

Only return the sample if the channel is valid. The EOC handler was
previously returning the value then checking for channel dropout.

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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H Hartley Sweeten 2014-03-04 11:29:41 -07:00 • committed by Greg Kroah-Hartman

parent 4206e1be3d

commit a8f461c2b9

1 changed files with 38 additions and 33 deletions

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drivers/staging/comedi/drivers/pcl818.c

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