drm/amd/display: Fixed kernel panic when booting with DP-to-HDMI dongle

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[Why]
In dc_link_is_dp_sink_present, if dal_ddc_open fails, then
dal_gpio_destroy_ddc is called, destroying pin_data and pin_clock. They
are created only on dc_construct, and next aux access will cause a panic.

[How]
Instead of calling dal_gpio_destroy_ddc, call dal_ddc_close.

Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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David Galiffi 2019-11-07 17:18:20 -05:00 • committed by Alex Deucher

parent 01290a5766

commit 8fb3a63636

1 changed files with 1 additions and 1 deletions

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

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