[PATCH 49/51 v2] staging: comedi: ni_labpc: fix labpc_eeprom_insn_write()

[H Hartley Sweeten]

The comedi core expects the (*insn_write) operations to write insn->n
values and return the number of values actually wrote.

Make this function work like the core expects.

Also, remove the noise about invalid channels.

Signed-off-by: H Hartley Sweeten <hsweeten at visionengravers.com>
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_labpc.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 0afcede..6461a46 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -1568,21 +1568,21 @@ static int labpc_eeprom_insn_write(struct comedi_device *dev,
 				   struct comedi_insn *insn,
 				   unsigned int *data)
 {
-	int channel = CR_CHAN(insn->chanspec);
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	int ret;
+	int i;
 
-	/*  only allow writes to user area of eeprom */
-	if (channel < 16 || channel > 127) {
-		dev_dbg(dev->class_dev,
-			"eeprom writes are only allowed to channels 16 through 127 (the pointer and user areas)\n");
+	/* only allow writes to user area of eeprom */
+	if (chan < 16 || chan > 127)
 		return -EINVAL;
-	}
 
-	ret = labpc_eeprom_write(dev, channel, data[0]);
-	if (ret < 0)
-		return ret;
+	for (i = 0; i < insn->n; i++) {
+		ret = labpc_eeprom_write(dev, chan, data[i]);
+		if (ret)
+			return ret;
+	}
 
-	return 1;
+	return insn->n;
 }
 
 static int labpc_eeprom_insn_read(struct comedi_device *dev,
-- 
1.8.1.4