[PATCH 02/19] drm/amd/display: Initialize lt_settings on instantiation

[Mikita Lipski]

From: Michael Strauss <michael.stra...@amd.com>

[WHY]
lt_settings' pointers remain uninitialized but nonzero if display fails
to light up with no DPCD/EDID info populated, leading to a hang on access

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
Acked-by: Mikita Lipski <mikita.lip...@amd.com>
Signed-off-by: Michael Strauss <michael.stra...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c 
b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 8b35cd9d4c01..20bbde8524b8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -1561,7 +1561,7 @@ bool dc_link_dp_perform_link_training_skip_aux(
        struct dc_link *link,
        const struct dc_link_settings *link_setting)
 {
-       struct link_training_settings lt_settings;
+       struct link_training_settings lt_settings = {0};
 
        dp_decide_training_settings(
                        link,
@@ -1707,7 +1707,7 @@ enum link_training_result 
dc_link_dp_perform_link_training(
        bool skip_video_pattern)
 {
        enum link_training_result status = LINK_TRAINING_SUCCESS;
-       struct link_training_settings lt_settings;
+       struct link_training_settings lt_settings = {0};
        enum dp_link_encoding encoding =
                        dp_get_link_encoding_format(link_settings);
 
@@ -1944,7 +1944,7 @@ enum link_training_result dc_link_dp_sync_lt_attempt(
     struct dc_link_settings *link_settings,
     struct dc_link_training_overrides *lt_overrides)
 {
-       struct link_training_settings lt_settings;
+       struct link_training_settings lt_settings = {0};
        enum link_training_result lt_status = LINK_TRAINING_SUCCESS;
        enum dp_panel_mode panel_mode = DP_PANEL_MODE_DEFAULT;
        enum clock_source_id dp_cs_id = CLOCK_SOURCE_ID_EXTERNAL;
-- 
2.25.1