Commit 03611e54 authored Aug 05, 2015 by H Hartley Sweeten Committed by Greg Kroah-Hartman Aug 07, 2015

staging: comedi: me4000: remove 'chan' check in me4000_ai_insn_read()

The comedi core validates that the 'chan' is valid for the subdevice
before calling the (*insn_read) operation. Remove the unnecessary check.

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>

parent 31bebc03

drivers/staging/comedi/drivers/me4000.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -477,11 +477,6 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
		switch (aref) {
		case AREF_GROUND:
		case AREF_COMMON:
		if (chan >= board->ai_nchan) {
		dev_err(dev->class_dev,
		"Analog input is not available\n");
		return -EINVAL;
		}
		entry \|= ME4000_AI_LIST_INPUT_SINGLE_ENDED \| chan;
		break;