From 64d8d46f5f501a19aec4db7ff93faf1b831d05ed Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Sat, 16 Jan 2010 01:14:38 +0100
Subject: pcmcia: properly lock skt->irq, skt->irq_mask

Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
 drivers/pcmcia/socket_sysfs.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/pcmcia/socket_sysfs.c')

diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c
index 537d79305e7a..1cba9d38d813 100644
--- a/drivers/pcmcia/socket_sysfs.c
+++ b/drivers/pcmcia/socket_sysfs.c
@@ -167,7 +167,9 @@ static ssize_t pccard_store_irq_mask(struct device *dev,
 	ret = sscanf(buf, "0x%x\n", &mask);
 
 	if (ret == 1) {
+		mutex_lock(&s->ops_mutex);
 		s->irq_mask &= mask;
+		mutex_unlock(&s->ops_mutex);
 		ret = 0;
 	}
 
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