From: Guus Sliepen <guus@sliepen.org>
Date: Sun, 19 Apr 2020 14:22:40 +0000 (+0200)
Subject: Avoid calling malloc() in fast_retransmit().
X-Git-Url: http://git.meshlink.io/?p=utcp;a=commitdiff_plain;h=29d79607fc285618f8441c8810632aa79ceade15;ds=sidebyside

Avoid calling malloc() in fast_retransmit().
---

diff --git a/utcp.c b/utcp.c
index f7c1859..19f6cfa 100644
--- a/utcp.c
+++ b/utcp.c
@@ -847,13 +847,7 @@ static void fast_retransmit(struct utcp_connection *c) {
 	struct {
 		struct hdr hdr;
 		uint8_t data[];
-	} *pkt;
-
-	pkt = malloc(c->utcp->mtu);
-
-	if(!pkt) {
-		return;
-	}
+	} *pkt = c->utcp->pkt;
 
 	pkt->hdr.src = c->src;
 	pkt->hdr.dst = c->dst;
@@ -885,8 +879,6 @@ static void fast_retransmit(struct utcp_connection *c) {
 	default:
 		break;
 	}
-
-	free(pkt);
 }
 
 static void retransmit(struct utcp_connection *c) {