linux-kernel - [PATCH 1/1] staging: usbip: remove an unnecessary lock in usbip_event_happened. The variable "happened" is local. So I think there is no need to lock here.

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Message-Id: <1352091026-5441-1-git-send-email-huawei.yang@gmail.com>
Date:	Mon,  5 Nov 2012 12:50:26 +0800
From:	Harvey Yang <harvey.huawei.yang@...il.com>
To:	Matt Mooney <mfm@...eddisk.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	"harvey.yang" <harvey.huawei.yang@...il.com>
Subject: [PATCH 1/1] staging: usbip: remove an unnecessary lock in usbip_event_happened. The variable "happened" is local. So I think there is no need to lock here.

From: harvey.yang <harvey.huawei.yang@...il.com>


Signed-off-by: harvey.yang <harvey.huawei.yang@...il.com>
---
 drivers/staging/usbip/usbip_event.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/usbip/usbip_event.c b/drivers/staging/usbip/usbip_event.c
index d332a34..668f8e0 100644
--- a/drivers/staging/usbip/usbip_event.c
+++ b/drivers/staging/usbip/usbip_event.c
@@ -116,10 +116,8 @@ int usbip_event_happened(struct usbip_device *ud)
 {
 	int happened = 0;
 
-	spin_lock(&ud->lock);
 	if (ud->event != 0)
 		happened = 1;
-	spin_unlock(&ud->lock);
 
 	return happened;
 }
-- 
1.7.1

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