Unverified Commit 66962712 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12828 drm/amd/display: Check null pointers before using them 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zheng Zucheng <zhengzucheng@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/U5BU3WCFZ5GHVFFGB4MJ7U4C24QOSK6N/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAYRD7 
 
Link:https://gitee.com/openeuler/kernel/pulls/12828

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 16913cc9 bea55e90

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+9 −5
Original line number Diff line number Diff line
@@ -5383,6 +5383,9 @@ create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector, 
	int requested_bpc = drm_state ? drm_state->max_requested_bpc : 8;

	enum dc_status dc_result = DC_OK;



	if (!dm_state)

		return NULL;



	do {

		stream = create_stream_for_sink(aconnector, drm_mode,

						dm_state, old_stream,
@@ -7787,6 +7790,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) 
		}



		if (is_content_protection_different(new_con_state, old_con_state, connector, adev->dm.hdcp_workqueue))

			if (aconnector->dc_link)

				hdcp_update_display(

					adev->dm.hdcp_workqueue, aconnector->dc_link->link_index, aconnector,

					new_con_state->hdcp_content_type,