diff-delta.c: allow delta with empty blob.

diff --git a/diff-delta.c b/diff-delta.c
index b2ae7b5e6c3b4aa409ccfa60f67d5c8eb1690504..cf5013896f6ea5efc35c9d7e90d076e4bf6328a5 100644 (file)
--- a/diff-delta.c
+++ b/diff-delta.c
@@ -213,7 +213,7 @@ void *diff_delta(void *from_buf, unsigned long from_size,
        bdrecord_t *brec;
        bdfile_t bdf;
 
-       if (!from_size || !to_size || delta_prepare(from_buf, from_size, &bdf))
+       if (delta_prepare(from_buf, from_size, &bdf))
                return NULL;
        
        outpos = 0;