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disp: msm: dp: check for active panels ptr before cleanup

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During a probable race condition where usermode is triggering
a delayed cleanup, this instance would be empty leading to a null
pointer dereference. This change will add protection around this
pointer.

Change-Id: I8e90a1ba3ca925f08678e5fa67616420204edae7
Signed-off-by: Sandeep Gangadharaiah <sandgang@codeaurora.org>
This commit is contained in:
Sandeep Gangadharaiah
2021-11-03 16:20:14 -04:00
parent cb24fd2bc6
commit ce678e896e
1 changed files with 1 additions and 1 deletions
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2
msm/dp/dp_display.c
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@@ -403,7 +403,7 @@ static void dp_display_hdcp_register_streams(struct dp_display_private *dp)
static void dp_display_hdcp_deregister_stream(struct dp_display_private *dp, static void dp_display_hdcp_deregister_stream(struct dp_display_private *dp,
enum dp_stream_id stream_id) enum dp_stream_id stream_id)
{ {
if (dp->hdcp.ops->deregister_streams) { if (dp->hdcp.ops->deregister_streams && dp->active_panels[stream_id]) {
struct stream_info stream = {stream_id, struct stream_info stream = {stream_id,
dp->active_panels[stream_id]->vcpi}; dp->active_panels[stream_id]->vcpi};