From: Wenjing Liu <wenjing....@amd.com>
[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....@amd.com>
Reviewed-by: Jun Lei <jun....@amd.com>
Acked-by: Leo Li <sunpeng...@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 59b247a..a002e69 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -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;
--
2.7.4
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