35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From b88c1cb2b263de9ffc3dcaa2822ef7b1fbd8575a Mon Sep 17 00:00:00 2001
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From: Stefan Weil <sw@weilnetz.de>
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Date: Tue, 4 Sep 2012 23:20:36 +0200
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Subject: [PATCH] slirp: Fix error reported by static code analysis
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Report from smatch:
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slirp/tcp_subr.c:127 tcp_respond(17) error:
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we previously assumed 'tp' could be null (see line 124)
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Return if 'tp' is NULL.
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
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Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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(cherry picked from commit e56afbc54a2132c56931f44bae1992c28119944f)
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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---
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slirp/tcp_subr.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c
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index 5890d7a..1542e43 100644
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--- a/slirp/tcp_subr.c
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+++ b/slirp/tcp_subr.c
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@@ -124,7 +124,7 @@ tcp_respond(struct tcpcb *tp, struct tcpiphdr *ti, struct mbuf *m,
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if (tp)
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win = sbspace(&tp->t_socket->so_rcv);
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if (m == NULL) {
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- if ((m = m_get(tp->t_socket->slirp)) == NULL)
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+ if (!tp || (m = m_get(tp->t_socket->slirp)) == NULL)
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return;
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tlen = 0;
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m->m_data += IF_MAXLINKHDR;
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