linux-kernel - [PATCH] mfd: fix a bug in the asic3 irq demux code

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Message-Id: <1215020573.24941.1.camel@localhost.localdomain>
Date:	Wed, 02 Jul 2008 19:42:53 +0200
From:	Philipp Zabel <philipp.zabel@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Samuel Ortiz <sameo@...nedhand.com>
Subject: [PATCH] mfd: fix a bug in the asic3 irq demux code

Wrong irq numbers were given to desc->handle_irq, which
on some devices caused endless loops (asic3_irq_demux
calling itself, basically).

Signed-off-by: Philipp Zabel <philipp.zabel@...il.com>
---
 drivers/mfd/asic3.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 8e41130..59ec9c6 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -308,7 +308,7 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
 		for (i = ASIC3_NUM_GPIOS; i < ASIC3_NR_IRQS; i++) {
 			/* They start at bit 4 and go up */
 			if (status & (1 << (i - ASIC3_NUM_GPIOS + 4))) {
-				desc = irq_desc +  + i;
+				desc = irq_desc + asic->irq_base + i;
 				desc->handle_irq(asic->irq_base + i,
 						 desc);
 			}
-- 
1.5.6


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