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drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()

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Make the locking look symmetric with the unlocking.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200603211040.8190-2-imre.deak@intel.com
This commit is contained in:
Imre Deak 2020-06-04 00:10:39 +03:00
parent fb7ba0c7cf
commit 8b9f3437ff
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_dp_mst_topology.c
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@ -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;