linux-kernel - [PATCH 09/14] xen: events: Remove redundant check on unsigned variable

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Date:	Fri, 16 Nov 2012 12:20:41 +0530
From:	Tushar Behera <tushar.behera@...aro.org>
To:	linux-kernel@...r.kernel.org
Cc:	patches@...aro.org, Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	xen-devel@...ts.xensource.com,
	virtualization@...ts.linux-foundation.org
Subject: [PATCH 09/14] xen: events: Remove redundant check on unsigned variable

No need to check whether unsigned variable is less than 0.

CC: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC: Jeremy Fitzhardinge <jeremy@...p.org>
CC: xen-devel@...ts.xensource.com
CC: virtualization@...ts.linux-foundation.org
Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
---
 drivers/xen/events.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 4293c57..cadd7d1 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -216,7 +216,7 @@ static void xen_irq_info_pirq_init(unsigned irq,
  */
 static unsigned int evtchn_from_irq(unsigned irq)
 {
-	if (unlikely(WARN(irq < 0 || irq >= nr_irqs, "Invalid irq %d!\n", irq)))
+	if (unlikely(WARN(irq >= nr_irqs, "Invalid irq %d!\n", irq)))
 		return 0;
 
 	return info_for_irq(irq)->evtchn;
-- 
1.7.4.1

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