From 6b91f09cf683c29989ab259f4a433fb7d1427b36 Mon Sep 17 00:00:00 2001
From: Joshua Wise <joshua@rebirth.joshuawise.com>
Date: Sat, 13 Dec 2008 20:32:46 -0500
Subject: [PATCH] Ref only the head of a pbuf chain, instead of the whole
 thing, to avoid leaking pbufs.

---
 net/3c90x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/3c90x.c b/net/3c90x.c
index 7b6a72e..d405352 100644
--- a/net/3c90x.c
+++ b/net/3c90x.c
@@ -432,12 +432,12 @@ static void _transmit(struct nic *_nic, struct pbuf *p)
 	len = 0;
 	n = 0;
 	txpbufs[txprod] = p;
+	pbuf_ref(p);
 	for (; p; p = p->next)
 	{
 		txdescs[txprod].segments[n].addr = v2p(p->payload);
 		txdescs[txprod].segments[n].len = p->len | (p->next ? 0 : (1 << 31));
 		len += p->len;
-		pbuf_ref(p);
 		n++;
 	}
 	txdescs[txprod].hdr = len;	/* If we wanted completion notification, bit 15 */
-- 
2.39.2