line-log.c: fix a memleak

The `filepair` is assigned new memory with any iteration via
process_diff_filepair, so free it before the current iteration ends.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/line-log.c b/line-log.c
index b7864ad5869eb076e778c352e2f64666dc77a525..e13455fd31cfd9f58ee73da113b2a517f69937bc 100644 (file)
--- a/line-log.c
+++ b/line-log.c
@@ -1099,6 +1099,7 @@ static int process_all_files(struct line_log_data **range_out,
                        rg->pair = diff_filepair_dup(queue->queue[i]);
                        memcpy(&rg->diff, pairdiff, sizeof(struct diff_ranges));
                }
+               free(pairdiff);
        }
 
        return changed;