Fix compiler warning in volumes.c

1 files changed, 1 insertions, 1 deletions

diff --git a/volumes.c b/volumes.c
index 2d04f643..c94f73c1 100644
--- a/volumes.c
+++ b/volumes.c
@@ -478,7 +478,7 @@ int btrfs_add_device(struct btrfs_trans_handle *trans,
 	struct extent_buffer *leaf;
 	struct btrfs_key key;
 	unsigned long ptr;
-	u64 free_devid;
+	u64 free_devid = 0;
 
 	root = root->fs_info->chunk_root;