Plug diff leaks.

It is a bit embarrassing that it took this long for a fix since the
problem was first reported on Aug 13th.

    Message-ID: <87y876gl1r.wl@mail2.atmark-techno.com>
    From: Yasushi SHOJI <yashi@atmark-techno.com>
    Newsgroups: gmane.comp.version-control.git
    Subject: [patch] possible memory leak in diff.c::diff_free_filepair()
    Date: Sat, 13 Aug 2005 19:58:56 +0900

This time I used valgrind to make sure that it does not overeagerly
discard memory that is still being used.

Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/diff.c b/diff.c
index 05a0663d4..d8d20c2fc 100644
--- a/diff.c
+++ b/diff.c
@@ -762,7 +762,8 @@ struct diff_filepair *diff_queue(struct diff_queue_struct *queue,
 	dp->status = 0;
 	dp->source_stays = 0;
 	dp->broken_pair = 0;
-	diff_q(queue, dp);
+	if (queue)
+		diff_q(queue, dp);
 	return dp;
 }
 
@@ -770,6 +771,8 @@ void diff_free_filepair(struct diff_filepair *p)
 {
 	diff_free_filespec_data(p->one);
 	diff_free_filespec_data(p->two);
+	free(p->one);
+	free(p->two);
 	free(p);
 }