From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 12 Oct 2015 16:21:26 +0000 (+0100)
Subject: staging: comedi: remove superfluous retval = 0 in comedi_read()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=f84e27adfc4cb0c4aa97d830c43f8c82aca0547c;p=openwrt%2Fstaging%2Fblogic.git

staging: comedi: remove superfluous retval = 0 in comedi_read()

`comedi_read()` initializes `retval` to 0.  The other `retval = 0`
assignments are superfluous, so remove them.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index a979f621f932..88ba0b648805 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -2504,8 +2504,6 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
 			if (!comedi_is_runflags_running(runflags)) {
 				if (comedi_is_runflags_in_error(runflags))
 					retval = -EPIPE;
-				else
-					retval = 0;
 				become_nonbusy = true;
 				break;
 			}
@@ -2519,7 +2517,6 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
 				break;
 			}
 			if (!s->busy) {
-				retval = 0;
 				break;
 			}
 			if (s->busy != file) {