[PATCH 34/34] Staging: comedi: drivers: cd_pcidas: Compression of

From: Nadim almas
Date: Sat Jul 30 2016 - 16:05:38 EST


This patch compresses two lines in to a single line in file
cb_pcidas.c
if immediate return statement is found. It also removes variable
bytes_written as it is no longer needed.

It is done using script Coccinelle. And coccinelle uses following
semantic patch for this compression function:

@@
expression e, ret;
@@

-ret =
+return
e;
-return ret

Signed-off-by: Nadim Almas <nadim.902@xxxxxxxxx>
---

drivers/staging/comedi/drivers/cb_pcidas64.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)



diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 1f9c08a..d30cf3d 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -1408,9 +1408,7 @@ static int set_ai_fifo_size(struct comedi_device *dev, unsigned int num_samples)
if (retval < 0)
return retval;

- num_samples = retval * fifo->num_segments * fifo->sample_packing_ratio;
-
- return num_samples;
+ return retval * fifo->num_segments * fifo->sample_packing_ratio;
}

/* query length of fifo */
--
2.7.4