[ Upstream commit fb488fc1f2b4c5128540b032892ddec91edaf8d9 ]
p9_read_work/p9_write_work might still hold references to a req after having been cancelled; make sure we put any of these to avoid potential request leak on disconnect.
Fixes: 728356dedeff8 ("9p: Add refcount to p9_req_t") Link: http://lkml.kernel.org/r/1539057956-23741-2-git-send-email-asmadeus@codewrec... Signed-off-by: Dominique Martinet dominique.martinet@cea.fr Cc: Eric Van Hensbergen ericvh@gmail.com Cc: Latchesar Ionkov lucho@ionkov.net Reviewed-by: Tomas Bortoli tomasbortoli@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/9p/trans_fd.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index a0317d459cde..f868cf6fba79 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -876,7 +876,15 @@ static void p9_conn_destroy(struct p9_conn *m)
p9_mux_poll_stop(m); cancel_work_sync(&m->rq); + if (m->rreq) { + p9_req_put(m->rreq); + m->rreq = NULL; + } cancel_work_sync(&m->wq); + if (m->wreq) { + p9_req_put(m->wreq); + m->wreq = NULL; + }
p9_conn_cancel(m, -ECONNRESET);