linux-kernel - [PATCH 02/14] xen: events: fix xen_map_pirq

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Message-Id: <1299692486-28634-2-git-send-email-ian.campbell@citrix.com>
Date:	Wed,  9 Mar 2011 17:41:14 +0000
From:	Ian Campbell <ian.campbell@...rix.com>
To:	xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	Ian Campbell <ian.campbell@...rix.com>
Subject: [PATCH 02/14] xen: events: fix xen_map_pirq_gsi error return

Fix initial value of irq so that first goto out (if pirq or gsi
arguments are too large) actually returns an error.

Signed-off-by: Ian Campbell <ian.campbell@...rix.com>
---
 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 684b095..2ce95a6 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -596,7 +596,7 @@ int xen_allocate_pirq(unsigned gsi, int shareable, char *name)
  */
 int xen_map_pirq_gsi(unsigned pirq, unsigned gsi, int shareable, char *name)
 {
-	int irq = 0;
+	int irq = -1;
 	struct physdev_irq irq_op;
 
 	spin_lock(&irq_mapping_update_lock);
-- 
1.5.6.5

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