X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fsbus%2Fchar%2Fopenprom.c;h=29dc735e1a20503a69968714c16a43428f1ff7cd;hb=6d52dcbe56ca8464bcad56d98a64bcd781596663;hp=fbfeb89a6f32d148abbbe9b9c0137d5a7f0fdb10;hpb=8269cc4e2b0ddcdcb9e7f2034c464ef8613737a1;p=linux-2.6

diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index fbfeb89a6f..29dc735e1a 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -33,6 +33,7 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/miscdevice.h>
 #include <linux/init.h>
@@ -689,9 +690,11 @@ static int openprom_open(struct inode * inode, struct file * file)
 	if (!data)
 		return -ENOMEM;
 
+	lock_kernel();
 	data->current_node = of_find_node_by_path("/");
 	data->lastnode = data->current_node;
 	file->private_data = (void *) data;
+	unlock_kernel();
 
 	return 0;
 }