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drm/amd/display: add NULL pointer check 

[why]
check dmub_Srv exist or not before accessing dmub.

Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu 2023-05-19 20:43:30 -04:00 committed by Alex Deucher
parent 3ffb193969
commit 389c6b3e12
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/amd/display/dc/core/dc_stream.c
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@ -276,8 +276,8 @@ static void program_cursor_attributes(
}
dc->hwss.set_cursor_attribute(pipe_ctx);
dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
if (dc->ctx->dmub_srv)
dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
if (dc->hwss.set_cursor_sdr_white_level)
dc->hwss.set_cursor_sdr_white_level(pipe_ctx);
}
@ -396,8 +396,8 @@ static void program_cursor_position(
}
dc->hwss.set_cursor_position(pipe_ctx);
dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
if (dc->ctx->dmub_srv)
dc_send_update_cursor_info_to_dmu(pipe_ctx, i);
}
if (pipe_to_program)