diff options
Diffstat (limited to 'drivers/sbus/char/openprom.c')
| -rw-r--r-- | drivers/sbus/char/openprom.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c index fbfeb89a6f3..29dc735e1a2 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; } |