linux-kernel - [PATCH v4 09/28] ia64, irq: Add dummy create_irq

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Message-Id: <1376189294-32022-10-git-send-email-yinghai@kernel.org>
Date:	Sat, 10 Aug 2013 19:47:55 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>, Tony Luck <tony.luck@...el.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>,
	Fenghua Yu <fenghua.yu@...el.com>, linux-ia64@...r.kernel.org,
	stable@...r.kernel.org
Subject: [PATCH v4 09/28] ia64, irq: Add dummy create_irq_nr()

create_irq() will return -1 when fail to allocate.
create_irq_nr() will return 0 when fail to allocate.

Will use it to fix one return value checking for dmar_msi irq.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Cc: linux-ia64@...r.kernel.org
Cc: stable@...r.kernel.org
---
 arch/ia64/kernel/irq_ia64.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 1034884..38e46df 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -429,6 +429,16 @@ int create_irq(void)
 	return irq;
 }
 
+unsigned int create_irq_nr(unsigned int from, int node)
+{
+	int irq = create_irq();
+
+	if (irq < 0)
+		irq = 0;
+
+	return irq;
+}
+
 void destroy_irq(unsigned int irq)
 {
 	dynamic_irq_cleanup(irq);
-- 
1.8.1.4

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