From: Felipe Balbi <balbi@ti.com>
Date: Wed, 23 Nov 2011 22:43:37 +0000 (-0800)
Subject: ARM: OMAP: smartreflex: fix IRQ handling bug
X-Git-Tag: v2.6.39-400.9.0~823^2~61
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=22ecf910dae00a464db7fb06142ff97a5096312f;p=users%2Fjedix%2Flinux-maple.git

ARM: OMAP: smartreflex: fix IRQ handling bug

commit 5a4f1844c2ba21f804d7729306d9b16eaeb724a8 upstream.

Fix a bug which has been on this driver since
it was added by the original commit 984aa6db
which would never clear IRQSTATUS bits.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index fb7dc52394a8..f5a6bc1250ce 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -137,7 +137,7 @@ static irqreturn_t sr_interrupt(int irq, void *data)
 		sr_write_reg(sr_info, ERRCONFIG_V1, status);
 	} else if (sr_info->ip_type == SR_TYPE_V2) {
 		/* Read the status bits */
-		sr_read_reg(sr_info, IRQSTATUS);
+		status = sr_read_reg(sr_info, IRQSTATUS);
 
 		/* Clear them by writing back */
 		sr_write_reg(sr_info, IRQSTATUS, status);