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authorJie Yang <yang.jie@intel.com>2015-01-12 12:17:34 +0300
committerMark Brown <broonie@kernel.org>2015-01-14 23:22:35 +0300
commita0a7c48fe1a6dc6cae7c589640443bbaaddc28b3 (patch)
tree49d9ac58f1d7a99eca98e3bea7192e518e4fc9ae /sound/soc
parent7ff9d6714a5c97fb448c53aae801af3d529ecb56 (diff)
downloadlinux-a0a7c48fe1a6dc6cae7c589640443bbaaddc28b3.tar.xz
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: Jie Yang <yang.jie@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/intel/sst-haswell-ipc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/intel/sst-haswell-ipc.c b/sound/soc/intel/sst-haswell-ipc.c
index 3f8c48231364..083292362da6 100644
--- a/sound/soc/intel/sst-haswell-ipc.c
+++ b/sound/soc/intel/sst-haswell-ipc.c
@@ -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;