[PATCH] drm/amd/display: Unlock on error path in dm_handle_mst_sideband_msg_ready_event()

[Alex Deucher]

On Fri, Jul 21, 2023 at 10:57 AM Dan Carpenter <dan.carpenter at linaro.org> wrote:
>
> This error path needs to unlock the "aconnector->handle_mst_msg_ready"
> mutex before returning.
>
> Fixes: bb4fa525f327 ("drm/amd/display: Add polling method to handle MST reply packet")
> Signed-off-by: Dan Carpenter <dan.carpenter at linaro.org>

Applied.  Thanks!

Alex

> ---
>  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 1abdec14344e..943959012d04 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
> @@ -707,7 +707,7 @@ 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);
> --
> 2.39.2
>