drm/amd/display: Add null check in resource_log_pipe_topology_update

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[WHY]
When switching from "Extend" to "Second Display Only" we sometimes
call resource_get_otg_master_for_stream on a stream for the eDP,
which is disconnected. This leads to a null pointer dereference.

[HOW]
Added a null check in dc_resource.c/resource_log_pipe_topology_update.

CC: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Natanel Roizenman <natanel.roizenman@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Natanel Roizenman 2024-04-03 16:52:48 -04:00 • committed by Alex Deucher

parent cbc7d7d446

commit 899d92fd26

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/core/dc_resource.c

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