From: Jimmy Kizito <jimmy.kiz...@amd.com>
[ Upstream commit 60f39edd897ea134a4ddb789a6795681691c3183 ]
[Why]
Links which are dynamically assigned link encoders have their link
encoder set to NULL.
[How]
Check that a pointer to a link_encoder object is non-NULL before using
it.
Reviewed-by: Aric Cyr <aric....@amd.com>
Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasunda...@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Signed-off-by: Jimmy Kizito <jimmy.kiz...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 2 +-
2 files changed, 2 insertions(+), 2 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 6d655e158267a..61c18637f84dc 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
@@ -4690,7 +4690,7 @@ enum dc_status dp_set_fec_ready(struct dc_link *link,
bool ready)
link_enc->funcs->fec_set_ready(link_enc, true);
link->fec_state = dc_link_fec_ready;
} else {
- link_enc->funcs->fec_set_ready(link->link_enc,
false);
+ link_enc->funcs->fec_set_ready(link_enc, false);
link->fec_state = dc_link_fec_not_ready;
dm_error("dpcd write failed to set fec_ready");
}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index df8a7718a85fc..3af49cdf89ebd 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1522,7 +1522,7 @@ void dcn10_power_down_on_boot(struct dc *dc)
for (i = 0; i < dc->link_count; i++) {
struct dc_link *link = dc->links[i];
- if (link->link_enc->funcs->is_dig_enabled &&
+ if (link->link_enc &&
link->link_enc->funcs->is_dig_enabled &&
link->link_enc->funcs->is_dig_enabled(link->link_enc) &&
dc->hwss.power_down) {
dc->hwss.power_down(dc);
--
2.33.0
