linux-kernel - [PATCH 1/4] drivers/xen/events/events_base.c: drop negativity check of unsigned parameter

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Date:	Thu, 17 Jul 2014 19:25:50 +0300
From:	Andrey Utkin <andrey.krieger.utkin@...il.com>
To:	kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
	xen-devel@...ts.xenproject.org
Cc:	wei.liu2@...rix.com, tglx@...utronix.de, david.vrabel@...rix.com,
	boris.ostrovsky@...cle.com, konrad.wilk@...cle.com,
	Andrey Utkin <andrey.krieger.utkin@...il.com>
Subject: [PATCH 1/4] drivers/xen/events/events_base.c: drop negativity check of unsigned parameter

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80531
Reported-by: David Binderman <dcb314@...mail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@...il.com>
---
 drivers/xen/events/events_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index c919d3d..5b5c5ff 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -246,7 +246,7 @@ static void xen_irq_info_cleanup(struct irq_info *info)
  */
 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;
-- 
1.8.5.5

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