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[v4,09/28] ia64, irq: Add dummy create_irq_nr()

Message ID 1376189294-32022-10-git-send-email-yinghai@kernel.org (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Yinghai Lu Aug. 11, 2013, 2:47 a.m. UTC 
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@kernel.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@vger.kernel.org
Cc: stable@vger.kernel.org
---
 arch/ia64/kernel/irq_ia64.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
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Patch

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);