From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> [ Upstream commit 38ac4e8385ffb275b1837986ca6c16f26ea028c5 ] This error path needs to unlock the "aconnector->handle_mst_msg_ready" mutex before returning. Fixes: 4f6d9e38c4d2 ("drm/amd/display: Add polling method to handle MST reply packet") Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 888e80f498e97..9bc86deac9e8e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -706,7 +706,7 @@ void dm_handle_mst_sideband_msg_ready_event( if (retry == 3) { DRM_ERROR("Failed to ack MST event.\n"); - return; + break; } drm_dp_mst_hpd_irq_send_new_request(&aconnector->mst_mgr); -- 2.40.1