Staging: comedi: Compressed two lines of code into one.

Author: Heena Sirwani <heenasirwani@gmail.com>

The following patch compressed two lines of code into one using
coccinelle and removed an unused variable.
The semantic patch used is as follows:

@@
expression ret;
identifier f;
@@

-ret =
+return
     f(...);
-return ret;

Signed-off-by: Heena Sirwani 
Signed-off-by: Greg Kroah-Hartman 
---
 drivers/staging/comedi/comedi_fops.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
 
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 495969f..224af2b 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -1718,7 +1718,6 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg,
 			   void *file)
 {
 	struct comedi_subdevice *s;
-	int ret;
 
 	if (arg >= dev->n_subdevices)
 		return -EINVAL;
@@ -1732,9 +1731,7 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg,
 	if (s->busy != file)
 		return -EBUSY;
 
-	ret = do_cancel(dev, s);
-
-	return ret;
+	return do_cancel(dev, s);
 }
 
 /*