From: Octavian Purdila <opurdila@ixiacom.com>
Date: Thu, 3 Jul 2008 10:31:21 +0000 (-0700)
Subject: tcp: fix a size_t < 0 comparison in tcp_read_sock
X-Git-Tag: upstream/snapshot3+hdmi~24424^2~36
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=374e7b59498ce0785b3727794b351221528a5159;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

tcp: fix a size_t < 0 comparison in tcp_read_sock

<used> should be of type int (not size_t) since recv_actor can return
negative values and it is also used in a < 0 comparison.

Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index de53024..1d723de 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1209,7 +1209,8 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
 		return -ENOTCONN;
 	while ((skb = tcp_recv_skb(sk, seq, &offset)) != NULL) {
 		if (offset < skb->len) {
-			size_t used, len;
+			int used;
+			size_t len;
 
 			len = skb->len - offset;
 			/* Stop reading if we hit a patch of urgent data */