From 198ac9dc7f0d06cd760d376c6a6c6217c5968d4a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 26 Mar 2013 10:27:11 -0700 Subject: [PATCH] staging: comedi: ni_labpc: fix labpc_calib_insn_read() The comedi core expects the (*insn_read) operations to read insn->n values and return the number of values actually read. Make this function work like the core expects. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/ni_labpc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index b0ec088a7285..bae72eb73451 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -1551,10 +1551,13 @@ static int labpc_calib_insn_read(struct comedi_device *dev, unsigned int *data) { struct labpc_private *devpriv = dev->private; + unsigned int chan = CR_CHAN(insn->chanspec); + int i; - data[0] = devpriv->caldac[CR_CHAN(insn->chanspec)]; + for (i = 0; i < insn->n; i++) + data[i] = devpriv->caldac[chan]; - return 1; + return insn->n; } static int labpc_eeprom_insn_write(struct comedi_device *dev, -- 2.30.2