diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 04b06bcf2ca9d0643af52a70117c23bee527a549..15cbc2bf4ff0ed11f8bb2e163bc1960c65b27fa7 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1175,7 +1175,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
 	struct tree_mod_elem *tm;
 	struct extent_buffer *eb;
 	struct tree_mod_root *old_root = NULL;
-	u64 old_generation;
+	u64 old_generation = 0;
 	u64 logical;
 
 	eb = btrfs_read_lock_root_node(root);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 58adbd0356d6ef93c301ff2780bb79564d150fa8..0e92e5763005214b5d55d091d6fcfb94d73f4875 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1308,7 +1308,8 @@ static noinline int btrfs_ioctl_resize(struct btrfs_root *root,
 	}
 	if (device->fs_devices && device->fs_devices->seeding) {
 		printk(KERN_INFO "btrfs: resizer unable to apply on "
-		       "seeding device %llu\n", devid);
+		       "seeding device %llu\n",
+		       (unsigned long long)devid);
 		ret = -EINVAL;
 		goto out_free;
 	}