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authorImre Deak <imre.deak@intel.com>2020-06-04 00:10:39 +0300
committerImre Deak <imre.deak@intel.com>2020-06-11 15:28:45 +0300
commit8b9f3437ff5b5d059f70f9ce44d169b0cc5650ee (patch)
treed1ed0465f586c8562799e1c1317f99861417e6fd /drivers/gpu/drm
parentfb7ba0c7cf92000b93b2286b4b55a75549e4a313 (diff)
downloadlinux-8b9f3437ff5b5d059f70f9ce44d169b0cc5650ee.tar.xz
drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()
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
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/drm_dp_mst_topology.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index cb4140dad486..469d3569d5ca 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;