diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index 6c7f18cd3b61..1c7f7f70caf4 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -382,14 +382,12 @@ static int lzo_decompress(struct list_head *ws, unsigned char *data_in,
 	struct workspace *workspace = list_entry(ws, struct workspace, list);
 	size_t in_len;
 	size_t out_len;
-	size_t tot_len;
 	int ret = 0;
 	char *kaddr;
 	unsigned long bytes;
 
 	BUG_ON(srclen < LZO_LEN);
 
-	tot_len = read_compress_length(data_in);
 	data_in += LZO_LEN;
 
 	in_len = read_compress_length(data_in);