[PATCH 2/7] drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()

[Imre Deak]

Make the locking look symmetric with the unlocking.

Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 1bdf3cfeeebb..5bc72e800b85 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1183,7 +1183,7 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 	ret = wait_event_timeout(mgr->tx_waitq,
 				 check_txmsg_state(mgr, txmsg),
 				 (4 * HZ));
-	mutex_lock(&mstb->mgr->qlock);
+	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
 			ret = -EIO;
-- 
2.23.1