From: Linus Walleij <linus.walleij@stericsson.com>
Date: Thu, 13 Aug 2009 09:50:01 +0000 (+0200)
Subject: mfd: AB3100 disable irq nosync
X-Git-Tag: v2.6.32-rc1~643^2~13
X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=commitdiff_plain;h=0ad651c94c7a1f3706f63dc0174e681315e7dc81

mfd: AB3100 disable irq nosync

This will make the worker fire interrupt disable the AB3100 IRQ
without sync which resolves a race since the interrupt obviously
cannot wait for itself to complete while being handled.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index bba534b..1d8ac1a 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -422,7 +422,7 @@ static irqreturn_t ab3100_irq_handler(int irq, void *data)
 	 * stuff and we will re-enable the interrupts once th
 	 * worker has finished.
 	 */
-	disable_irq(ab3100->i2c_client->irq);
+	disable_irq_nosync(irq);
 	schedule_work(&ab3100->work);
 	return IRQ_HANDLED;
 }