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ASoC: Intel: initial stream_hw_id to invalid value

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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: Jie Yang <yang.jie@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jie Yang 2015-01-12 17:17:34 +08:00 committed by Mark Brown
parent 7ff9d6714a
commit a0a7c48fe1
1 changed files with 3 additions and 0 deletions
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3
sound/soc/intel/sst-haswell-ipc.c
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@ -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;