From 2e7b65e4bbe3b35ece1b8c8179a77071be042c38 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 22 Oct 2014 15:36:41 -0700
Subject: [PATCH] staging: comedi: das16: use comedi_buf_write_samples()

Use comedi_buf_write_samples() to add the samples to the async buffer.
That function will determining the number of bytes to add based on the
bytes_per_sample().

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>
---
 drivers/staging/comedi/drivers/das16.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 5d47d0a1d45f..aa9e3e10d59d 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -541,6 +541,7 @@ static void das16_interrupt(struct comedi_device *dev)
 	struct comedi_cmd *cmd = &async->cmd;
 	unsigned long spin_flags;
 	unsigned long dma_flags;
+	unsigned int nsamples;
 	int num_bytes, residue;
 	int buffer_index;
 
@@ -583,8 +584,9 @@ static void das16_interrupt(struct comedi_device *dev)
 
 	spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 
-	cfc_write_array_to_buffer(s,
-				  devpriv->dma_buffer[buffer_index], num_bytes);
+	nsamples = num_bytes / bytes_per_sample(s);
+	comedi_buf_write_samples(s, devpriv->dma_buffer[buffer_index],
+				 nsamples);
 
 	comedi_handle_events(dev, s);
 }
-- 
2.20.1