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drm/amd/display: assign new stream id in dc_copy_stream

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[why]
stream id should uniquely identify an instance of stream.
the copy constructor should be treated as a new
stream instance.

[how]
assign a new stream id in this copy constructor.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu 2019-05-07 15:18:44 -04:00 committed by Alex Deucher
parent a7f90cbc0e
commit b1432fcbdb
1 changed files with 3 additions and 0 deletions
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drivers/gpu/drm/amd/display/dc/core/dc_stream.c
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@ -179,6 +179,9 @@ struct dc_stream_state *dc_copy_stream(const struct dc_stream_state *stream)
if (new_stream->out_transfer_func)
dc_transfer_func_retain(new_stream->out_transfer_func);
new_stream->stream_id = new_stream->ctx->dc_stream_id_count;
new_stream->ctx->dc_stream_id_count++;
kref_init(&new_stream->refcount);
return new_stream;