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Commit 4fb7253e authored by Hangbin Liu's avatar Hangbin Liu Committed by David S. Miller
Browse files

igmp: fix incorrect unsolicit report count when join group 



We should not start timer if im->unsolicit_count equal to 0 after decrease.
Or we will send one more unsolicit report message. i.e. 3 instead of 2 by
default.

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: default avatarHangbin Liu <liuhangbin@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 93bbadd6

net/ipv4/igmp.c

+2 −3
Original line number Diff line number Diff line
@@ -820,10 +820,9 @@ static void igmp_timer_expire(struct timer_list *t) 
	spin_lock(&im->lock);

	im->tm_running = 0;



	if (im->unsolicit_count) {

		im->unsolicit_count--;

	if (im->unsolicit_count && --im->unsolicit_count)

		igmp_start_timer(im, unsolicited_report_interval(in_dev));

	}



	im->reporter = 1;

	spin_unlock(&im->lock);