staging: comedi: dt9812: cleanup analog out subdevice (*insn_write)

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For aesthetic reasons, rename the function to help with grepping and
rename some of the local vars.

The dt9812_analog_out() function can fail. Make sure to check for any
failure and return the errno.

The comedi core expects the (*insn_write) functions to return either
an errno or the number of samples written. Change the final return to
insn->n to make this clearer.

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

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H Hartley Sweeten 2013-05-14 14:33:53 -07:00 • committed by Greg Kroah-Hartman

parent e79f18e6b9

commit 99928e654d

1 changed files with 15 additions and 9 deletions

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drivers/staging/comedi/drivers/dt9812.c

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