diff options
| -rw-r--r-- | fs/btrfs/ioctl.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 08ac53c5f78d..864aab4b1bfa 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2715,15 +2715,10 @@ static long btrfs_ioctl_file_extent_same(struct file *file, size = sizeof(tmp) + tmp.dest_count * sizeof(struct btrfs_ioctl_same_extent_info); - same = kmalloc(size, GFP_NOFS); - if (!same) { - ret = -EFAULT; - goto out; - } + same = memdup_user((struct btrfs_ioctl_same_args __user *)argp, size); - if (copy_from_user(same, - (struct btrfs_ioctl_same_args __user *)argp, size)) { - ret = -EFAULT; + if (IS_ERR(same)) { + ret = PTR_ERR(same); goto out; } |