# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 2018-06-14 11:25:16
# Node ID 068e774ae29e021a8a0cbe88b7245c2add47dca9
# Parent  519b46a8f4d2bfa6affb19149881517cb31d59af

bdiff: document that bdiff_freehunks() accepts NULL

blocks() of cext/bdiff.c may pass NULL on OOM.

diff --git a/mercurial/bdiff.c b/mercurial/bdiff.c
--- a/mercurial/bdiff.c
+++ b/mercurial/bdiff.c
@@ -310,6 +310,7 @@ int bdiff_diff(struct bdiff_line *a, int
 	return count;
 }
 
+/* deallocate list of hunks; l may be NULL */
 void bdiff_freehunks(struct bdiff_hunk *l)
 {
 	struct bdiff_hunk *n;