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authorArnd Bergmann <arnd@arndb.de>2012-11-12 15:26:41 +0100
committerArnd Bergmann <arnd@arndb.de>2012-11-12 15:26:41 +0100
commitb68c50d836517cf662145b2e7d5cdf40a38b24f1 (patch)
treebcd0796a008f640d450dc1b4d27cb414f3828082 /net/ipv4/tcp_illinois.c
parent5bd09fb0336aa4020b85f13e16a4d21e3f5f70c3 (diff)
parent84cee34db4d34b9059f4ef66f7d1805e438cc7f3 (diff)
Merge branch 'lpc32xx/core' of git://git.antcom.de/linux-2.6 into next/soc
Patches from Roland Stigge <stigge@antcom.de>: Platform topic branch for lpc32xx * 'lpc32xx/core' of git://git.antcom.de/linux-2.6: ARM: LPC32xx: Add the motor PWM clock ARM: LPC32xx: Cleanup irq.c ARM: LPC32xx: Relocate calls to irq_set_chained_handler() ARM: LPC32xx: Remove superfluous irq_alloc_descs() Includes an update to v3.7-rc4 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'net/ipv4/tcp_illinois.c')
-rw-r--r--net/ipv4/tcp_illinois.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 813b43a76fe..834857f3c87 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -313,11 +313,13 @@ static void tcp_illinois_info(struct sock *sk, u32 ext,
.tcpv_rttcnt = ca->cnt_rtt,
.tcpv_minrtt = ca->base_rtt,
};
- u64 t = ca->sum_rtt;
- do_div(t, ca->cnt_rtt);
- info.tcpv_rtt = t;
+ if (info.tcpv_rttcnt > 0) {
+ u64 t = ca->sum_rtt;
+ do_div(t, info.tcpv_rttcnt);
+ info.tcpv_rtt = t;
+ }
nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
}
}