Patch "tipc: fix cleanup at module unload" has been added to the 4.9-stable tree

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This is a note to let you know that I've just added the patch titled

    tipc: fix cleanup at module unload

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     tipc-fix-cleanup-at-module-unload.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From foo@baz Wed Dec  6 17:39:55 CET 2017
From: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@xxxxxxxxxxxx>
Date: Tue, 24 Jan 2017 13:00:48 +0100
Subject: tipc: fix cleanup at module unload

From: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@xxxxxxxxxxxx>


[ Upstream commit 35e22e49a5d6a741ebe7f2dd280b2052c3003ef7 ]

In tipc_server_stop(), we iterate over the connections with limiting
factor as server's idr_in_use. We ignore the fact that this variable
is decremented in tipc_close_conn(), leading to premature exit.

In this commit, we iterate until the we have no connections left.

Acked-by: Ying Xue <ying.xue@xxxxxxxxxxxxx>
Acked-by: Jon Maloy <jon.maloy@xxxxxxxxxxxx>
Tested-by: John Thompson <thompa.atl@xxxxxxxxx>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/tipc/server.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/net/tipc/server.c
+++ b/net/tipc/server.c
@@ -619,14 +619,12 @@ int tipc_server_start(struct tipc_server
 void tipc_server_stop(struct tipc_server *s)
 {
 	struct tipc_conn *con;
-	int total = 0;
 	int id;
 
 	spin_lock_bh(&s->idr_lock);
-	for (id = 0; total < s->idr_in_use; id++) {
+	for (id = 0; s->idr_in_use; id++) {
 		con = idr_find(&s->conn_idr, id);
 		if (con) {
-			total++;
 			spin_unlock_bh(&s->idr_lock);
 			tipc_close_conn(con);
 			spin_lock_bh(&s->idr_lock);


Patches currently in stable-queue which might be from parthasarathy.bhuvaragan@xxxxxxxxxxxx are

queue-4.9/tipc-fix-nametbl_lock-soft-lockup-at-module-exit.patch
queue-4.9/tipc-fix-cleanup-at-module-unload.patch



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