From: Julia Lawall <julia@diku.dk>
Date: Sun, 29 Jun 2008 20:50:56 +0000 (+0200)
Subject: It looks at least odd to apply spin_unlock to a mutex.
X-Git-Tag: v2.6.27-rc1~970^2~3^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9be48a94b8ae8c944dc918ad65f2f27e9df3ed00;p=linux-2.6

It looks at least odd to apply spin_unlock to a mutex.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@def@
declarer DEFINE_MUTEX;
identifier m;
@@

DEFINE_MUTEX(m);

@@
identifier def.m;
@@

(
- spin_lock(&m)
+ mutex_lock(&m)
|
- spin_unlock(&m)
+ mutex_unlock(&m)
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
---

diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c
index 52103d16dc..8769dc9140 100644
--- a/arch/cris/arch-v10/drivers/pcf8563.c
+++ b/arch/cris/arch-v10/drivers/pcf8563.c
@@ -233,7 +233,7 @@ int pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 
 		if (copy_to_user((struct rtc_time *) arg, &tm,
 				 sizeof tm)) {
-			spin_unlock(&rtc_lock);
+			mutex_unlock(&rtc_lock);
 			return -EFAULT;
 		}
 
diff --git a/arch/cris/arch-v32/drivers/pcf8563.c b/arch/cris/arch-v32/drivers/pcf8563.c
index 53db3870ba..f263ab5712 100644
--- a/arch/cris/arch-v32/drivers/pcf8563.c
+++ b/arch/cris/arch-v32/drivers/pcf8563.c
@@ -229,7 +229,7 @@ int pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 
 		if (copy_to_user((struct rtc_time *) arg, &tm,
 				 sizeof tm)) {
-			spin_unlock(&rtc_lock);
+			mutex_unlock(&rtc_lock);
 			return -EFAULT;
 		}