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authorDavid Woodhouse <David.Woodhouse@intel.com>2008-07-25 18:40:14 +0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-07-25 18:40:14 +0400
commitff877ea80efa2015b6263766f78ee42c2a1b32f9 (patch)
tree85205005c611ab774702148558321c6fb92f1ccd /drivers/s390/char/monwriter.c
parent30821fee4f0cb3e6d241d9f7ddc37742212e3eb7 (diff)
parentd37e6bf68fc1eb34a4ad21d9ae8890ed37ea80e7 (diff)
downloadlinux-ff877ea80efa2015b6263766f78ee42c2a1b32f9.tar.xz
Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
Diffstat (limited to 'drivers/s390/char/monwriter.c')
-rw-r--r--drivers/s390/char/monwriter.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index a86c0534cd49..4d71aa8c1a79 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -12,6 +12,7 @@
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/errno.h>
+#include <linux/smp_lock.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/miscdevice.h>
@@ -179,10 +180,12 @@ static int monwrite_open(struct inode *inode, struct file *filp)
monpriv = kzalloc(sizeof(struct mon_private), GFP_KERNEL);
if (!monpriv)
return -ENOMEM;
+ lock_kernel();
INIT_LIST_HEAD(&monpriv->list);
monpriv->hdr_to_read = sizeof(monpriv->hdr);
mutex_init(&monpriv->thread_mutex);
filp->private_data = monpriv;
+ unlock_kernel();
return nonseekable_open(inode, filp);
}