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Commit a0a7c48f authored by Jie Yang's avatar Jie Yang Committed by Mark Brown
Browse files

ASoC: Intel: initial stream_hw_id to invalid value 



The stream_hw_id for System stream is 0x0, if we use initial stream_hw_id
value 0, it may return wrong(not committed) stream when calling function
get_stream_by_id() with stream_id=0. Here initial stream_hw_id to invalid
value to fix this issue.

Signed-off-by: default avatarJie Yang <yang.jie@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7ff9d671

sound/soc/intel/sst-haswell-ipc.c

+3 −0
Original line number Diff line number Diff line
@@ -94,6 +94,8 @@ 
/* Mailbox */

#define IPC_MAX_MAILBOX_BYTES	256



#define INVALID_STREAM_HW_ID	0xffffffff



/* Global Message - Types and Replies */

enum ipc_glb_type {

	IPC_GLB_GET_FW_VERSION = 0,		/* Retrieves firmware version */
@@ -1208,6 +1210,7 @@ struct sst_hsw_stream *sst_hsw_stream_new(struct sst_hsw *hsw, int id, 
		return NULL;



	spin_lock_irqsave(&sst->spinlock, flags);

	stream->reply.stream_hw_id = INVALID_STREAM_HW_ID;

	list_add(&stream->node, &hsw->stream_list);

	stream->notify_position = notify_position;

	stream->pdata = data;