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Revert rev. 1.94. After recent tcp backouts, tcp_close() may return NULL.

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Check the return value of tcp_close() being NULL before dereferencing it
in #ifdef TCPDEBUG block.

Reviewed by:	rwatson
Approved by:	re (gnn)
This commit is contained in:
Konstantin Belousov 2007-09-24 14:46:27 +00:00
parent e0bbe4b1e6
commit 586b4a0e50
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=172312
1 changed files with 1 additions and 1 deletions
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2
sys/netinet/tcp_timer.c
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@ -240,7 +240,7 @@ tcp_timer_2msl(void *xtp)
}
#ifdef TCPDEBUG
if (tp->t_inpcb->inp_socket->so_options & SO_DEBUG)
if (tp != NULL && (tp->t_inpcb->inp_socket->so_options & SO_DEBUG))
tcp_trace(TA_USER, ostate, tp, (void *)0, (struct tcphdr *)0,
PRU_SLOWTIMO);
#endif