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-rw-r--r--drivers/thunderbolt/tunnel.c11
-rw-r--r--drivers/thunderbolt/tunnel.h2
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/thunderbolt/tunnel.c b/drivers/thunderbolt/tunnel.c
index 8229a6fbda5a..717b31d78728 100644
--- a/drivers/thunderbolt/tunnel.c
+++ b/drivers/thunderbolt/tunnel.c
@@ -1009,6 +1009,8 @@ static int tb_dp_dprx_start(struct tb_tunnel *tunnel)
*/
tb_tunnel_get(tunnel);
+ tunnel->dprx_started = true;
+
if (tunnel->callback) {
tunnel->dprx_timeout = dprx_timeout_to_ktime(dprx_timeout);
queue_delayed_work(tunnel->tb->wq, &tunnel->dprx_work, 0);
@@ -1021,9 +1023,12 @@ static int tb_dp_dprx_start(struct tb_tunnel *tunnel)
static void tb_dp_dprx_stop(struct tb_tunnel *tunnel)
{
- tunnel->dprx_canceled = true;
- cancel_delayed_work(&tunnel->dprx_work);
- tb_tunnel_put(tunnel);
+ if (tunnel->dprx_started) {
+ tunnel->dprx_started = false;
+ tunnel->dprx_canceled = true;
+ cancel_delayed_work(&tunnel->dprx_work);
+ tb_tunnel_put(tunnel);
+ }
}
static int tb_dp_activate(struct tb_tunnel *tunnel, bool active)
diff --git a/drivers/thunderbolt/tunnel.h b/drivers/thunderbolt/tunnel.h
index 7f6d3a18a41e..8a0a0cb21a89 100644
--- a/drivers/thunderbolt/tunnel.h
+++ b/drivers/thunderbolt/tunnel.h
@@ -63,6 +63,7 @@ enum tb_tunnel_state {
* @allocated_down: Allocated downstream bandwidth (only for USB3)
* @bw_mode: DP bandwidth allocation mode registers can be used to
* determine consumed and allocated bandwidth
+ * @dprx_started: DPRX negotiation was started (tb_dp_dprx_start() was called for it)
* @dprx_canceled: Was DPRX capabilities read poll canceled
* @dprx_timeout: If set DPRX capabilities read poll work will timeout after this passes
* @dprx_work: Worker that is scheduled to poll completion of DPRX capabilities read
@@ -100,6 +101,7 @@ struct tb_tunnel {
int allocated_up;
int allocated_down;
bool bw_mode;
+ bool dprx_started;
bool dprx_canceled;
ktime_t dprx_timeout;
struct delayed_work dprx_work;