linux-kernel - [PATCH V2] dma/ipu: change ipu_irq_handler() to remove compile warning

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Date:	Tue, 25 Aug 2015 16:15:13 +0800
From:	yalin wang <yalin.wang2010@...il.com>
To:	vinod.koul@...el.com, dan.j.williams@...el.com, tglx@...utronix.de,
	robh@...nel.org, yalin.wang2010@...il.com,
	jiang.liu@...ux.intel.com, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH V2] dma/ipu: change ipu_irq_handler() to remove compile warning

Change ipu_irq_handler() to avoid gcc warning:

drivers/dma/ipu/ipu_irq.c:305:4: warning: 'irq' may be used
uninitialized in this function [-Wmaybe-uninitialized]
    generic_handle_irq(irq);

Signed-off-by: yalin wang <yalin.wang2010@...il.com>
---
 drivers/dma/ipu/ipu_irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index 7489d2a..4768a82 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -286,7 +286,7 @@ static void ipu_irq_handler(unsigned int __irq, struct irq_desc *desc)
 		raw_spin_unlock(&bank_lock);
 		while ((line = ffs(status))) {
 			struct ipu_irq_map *map;
-			unsigned int irq;
+			unsigned int irq = NO_IRQ;
 
 			line--;
 			status &= ~(1UL << line);
-- 
1.9.1

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