linux-kernel - [34-longterm 179/260] x86, hpet: Fix bogus error check in hpet_assign

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Date:	Sun,  2 Jan 2011 02:17:55 -0500
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	stable@...nel.org, linux-kernel@...r.kernel.org
Cc:	stable-review@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
	Venkatesh Pallipadi <venki@...gle.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [34-longterm 179/260] x86, hpet: Fix bogus error check in hpet_assign_irq()

From: Thomas Gleixner <tglx@...utronix.de>

commit 021989622810b02aab4b24f91e1f5ada2b654579 upstream.

create_irq() returns -1 if the interrupt allocation failed, but the
code checks for irq == 0.

Use create_irq_nr() instead.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Venkatesh Pallipadi <venki@...gle.com>
LKML-Reference: <alpine.LFD.2.00.1009282310360.2416@...alhost6.localdomain6>
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 arch/x86/kernel/hpet.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 5294b58..c5f8121 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -499,7 +499,7 @@ static int hpet_assign_irq(struct hpet_dev *dev)
 {
 	unsigned int irq;
 
-	irq = create_irq();
+	irq = create_irq_nr(0, -1);
 	if (!irq)
 		return -EINVAL;
 
-- 
1.7.3.3

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