Subject: [PATCH 3/3] diff.c: use diff_free_queue()

From: SZEDER Gábor <[email-masked]>
Date: Wed, 2 Nov 2022 23:01:42 +0100

Use diff_free_queue() instead of open-coding it.  This shortens the
code and make it less repetitive.

Note that the second hunk in diff_flush() is interesting, because the
'free_queue' label separates the loop freeing the queue's filepairs
from free()-ing the queue's internal array.  This is somewhat
suspicious, but it was not an issue before: there is only one place
from where we jump to this label with a goto, and that is protected by
an 'if (!q->nr && ...)' condition, i.e. we only skipped the loop
freeing the filepairs when there were no filepairs in the queue to
begin with.

Signed-off-by: SZEDER Gábor <[email-masked]>
---
 diff.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/diff.c b/diff.c
index ef94175163..03e6ffb5e4 100644
--- a/diff.c
+++ b/diff.c
@@ -6337,13 +6337,9 @@ static int diff_get_patch_id(struct diff_options *options, struct object_id *oid
 int diff_flush_patch_id(struct diff_options *options, struct object_id *oid, int diff_header_only)
 {
 	struct diff_queue_struct *q = &diff_queued_diff;
-	int i;
 	int result = diff_get_patch_id(options, oid, diff_header_only);
 
-	for (i = 0; i < q->nr; i++)
-		diff_free_filepair(q->queue[i]);
-
-	free(q->queue);
+	diff_free_queue(q);
 	DIFF_QUEUE_CLEAR(q);
 
 	return result;
@@ -6612,10 +6608,8 @@ void diff_flush(struct diff_options *options)
 	if (output_format & DIFF_FORMAT_CALLBACK)
 		options->format_callback(q, options, options->format_callback_data);
 
-	for (i = 0; i < q->nr; i++)
-		diff_free_filepair(q->queue[i]);
 free_queue:
-	free(q->queue);
+	diff_free_queue(q);
 	DIFF_QUEUE_CLEAR(q);
 	diff_free(options);
 
-- 
2.38.1.564.g99c012faba