diff options
| -rw-r--r-- | fs/btrfs/ioctl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 9ebb2c7..3d8ab27 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2263,10 +2263,12 @@ static long btrfs_ioctl_dev_info(struct btrfs_root *root, void __user *arg) di_args->bytes_used = dev->bytes_used; di_args->total_bytes = dev->total_bytes; memcpy(di_args->uuid, dev->uuid, sizeof(di_args->uuid)); - if (dev->name) + if (dev->name) { strncpy(di_args->path, dev->name, sizeof(di_args->path)); - else + di_args->path[sizeof(di_args->path) - 1] = 0; + } else { di_args->path[0] = '\0'; + } out: if (ret == 0 && copy_to_user(arg, di_args, sizeof(*di_args))) |
