linux-kernel - [PATCH 1/1] hidraw: Replace Confusing += Operator with =

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Message-Id: <1296098718-6964-1-git-send-email-alan@signal11.us>
Date:	Wed, 26 Jan 2011 22:25:18 -0500
From:	Alan Ott <alan@...nal11.us>
To:	Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Alan Ott <alan@...nal11.us>
Subject: [PATCH 1/1] hidraw: Replace Confusing += Operator with =

Setting of the return value of hidraw_read() uses the += operator when
= is more appropriate.  There is no case where ret can be anything
other than zero when the assignment is made, making = equivalent to
+= and much more clear.

Signed-off-by: Alan Ott <alan@...nal11.us>
---
 drivers/hid/hidraw.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 468e87b..66fbcba 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -91,7 +91,7 @@ static ssize_t hidraw_read(struct file *file, char __user *buffer, size_t count,
 			ret = -EFAULT;
 			goto out;
 		}
-		ret += len;
+		ret = len;
 
 		kfree(list->buffer[list->tail].value);
 		list->tail = (list->tail + 1) & (HIDRAW_BUFFER_SIZE - 1);
-- 
1.7.0.4


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