Subject: [PATCH] bisect: save heap memory. allocate only the required amount

From: Arjun Sreedharan <[email-masked]>
Date: Sun, 24 Aug 2014 19:47:24 +0530

Find and allocate the required amount instead of
allocating extra 100 bytes

Signed-off-by: Arjun Sreedharan <[email-masked]>
---
 bisect.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/bisect.c b/bisect.c
index d6e851d..c96aab0 100644
--- a/bisect.c
+++ b/bisect.c
@@ -215,10 +215,13 @@ static struct commit_list *best_bisection_sorted(struct commit_list *list, int n
 	}
 	qsort(array, cnt, sizeof(*array), compare_commit_dist);
 	for (p = list, i = 0; i < cnt; i++) {
-		struct name_decoration *r = xmalloc(sizeof(*r) + 100);
+		char name[100];
+		sprintf(name, "dist=%d", array[i].distance);
+		int name_len = strlen(name);
+		struct name_decoration *r = xmalloc(sizeof(*r) + name_len);
 		struct object *obj = &(array[i].commit->object);
 
-		sprintf(r->name, "dist=%d", array[i].distance);
+		memcpy(r->name, name, name_len + 1);
 		r->next = add_decoration(&name_decoration, obj, r);
 		p->item = array[i].commit;
 		p = p->next;
-- 
1.7.11.7