From: Xin Long <lucien.xin@gmail.com>
Date: Mon, 12 Aug 2019 20:49:12 +0800
Subject: sctp: fix the transport error_count check
Git-commit: a1794de8b92ea6bc2037f445b296814ac826693e
Patch-mainline: 5.3-rc6
References: networking-stable-19_08_21

As the annotation says in sctp_do_8_2_transport_strike():

  "If the transport error count is greater than the pf_retrans
   threshold, and less than pathmaxrtx ..."

It should be transport->error_count checked with pathmaxrxt,
instead of asoc->pf_retrans.

Fixes: 5aa93bcf66f4 ("sctp: Implement quick failover draft from tsvwg")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 net/sctp/sm_sideeffect.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -540,7 +540,7 @@ static void sctp_do_8_2_transport_strike
 	 */
 	if (net->sctp.pf_enable &&
 	   (transport->state == SCTP_ACTIVE) &&
-	   (asoc->pf_retrans < transport->pathmaxrxt) &&
+	   (transport->error_count < transport->pathmaxrxt) &&
 	   (transport->error_count > asoc->pf_retrans)) {
 
 		sctp_assoc_control_transport(asoc, transport,