blob: 280900f74b4f8880e06f1153fa6aae3e71dae287 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
From a274fbfefeca017c09c8536ac85dce2fcf9866c7 Mon Sep 17 00:00:00 2001
From: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Date: Mon, 25 Nov 2019 10:34:13 -0500
Subject: [PATCH 4598/4736] drm/amd/display: Null check aconnector in
event_property_validate
[Why]
previously event_property_validate was only called after we enabled the display.
But after "Refactor HDCP to handle multiple displays per link" this function
can be called at any time. In certain cases we don't have a aconnector
[How]
Null check aconnector and exit early. This is ok because we only need to check the
ENABLED->DESIRED transition if a connector exists.
Fixes: cc5dae9f6286 ("drm/amd/display: Refactor HDCP to handle multiple
displays per link")
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index f6864a51891a..ae329335dfcc 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -225,6 +225,9 @@ static void event_property_validate(struct work_struct *work)
struct mod_hdcp_display_query query;
struct amdgpu_dm_connector *aconnector = hdcp_work->aconnector;
+ if (!aconnector)
+ return;
+
mutex_lock(&hdcp_work->mutex);
query.encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
--
2.17.1
|
