X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=diffcore-order.c;h=aef6da60447b98a05d91513b4aa74e505b0a0d84;hb=8a8c55ea709d26ca397d6588e85579339885f507;hp=b38122361f837e2e2577a89ae7aec311730b7f10;hpb=2b64f88f09ae2169ec85652b46897574e352936d;p=git.git

diff --git a/diffcore-order.c b/diffcore-order.c
index b38122361..aef6da604 100644
--- a/diffcore-order.c
+++ b/diffcore-order.c
@@ -30,7 +30,7 @@ static void prepare_order(const char *orderfile)
 	close(fd);
 	if (map == MAP_FAILED)
 		return;
-	endp = map + st.st_size;
+	endp = (char *) map + st.st_size;
 	for (pass = 0; pass < 2; pass++) {
 		cnt = 0;
 		cp = map;
@@ -105,9 +105,13 @@ static int compare_pair_order(const void *a_, const void *b_)
 void diffcore_order(const char *orderfile)
 {
 	struct diff_queue_struct *q = &diff_queued_diff;
-	struct pair_order *o = xmalloc(sizeof(*o) * q->nr);
+	struct pair_order *o;
 	int i;
 
+	if (!q->nr)
+		return;
+
+	o = xmalloc(sizeof(*o) * q->nr);
 	prepare_order(orderfile);
 	for (i = 0; i < q->nr; i++) {
 		o[i].pair = q->queue[i];