diff options
Diffstat (limited to 'drivers/char/viotape.c')
| -rw-r--r-- | drivers/char/viotape.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index c39ddaff5e8..977f7d35e76 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -46,6 +46,7 @@ #include <linux/completion.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/ioctls.h> @@ -687,6 +688,7 @@ static int viotap_open(struct inode *inode, struct file *file) if (op == NULL) return -ENOMEM; + lock_kernel(); get_dev_info(file->f_path.dentry->d_inode, &devi); /* Note: We currently only support one mode! */ @@ -717,6 +719,7 @@ static int viotap_open(struct inode *inode, struct file *file) free_op: free_op_struct(op); + unlock_kernel(); return ret; } |