[PATCH] Allows sink.c to know why the stream setup failed

Hi All,

This is my second patch towards the way of solving cross a2dp connect issues.
The reason to be of this patch is to move the l2cap connection request error code up the call stack (the error code was previously lost around the way) :-(.

Basically i intent to use this knowledge to be a bit more clever at the sink level, and be able to better handle errors due to cross l2cap channel connections, instead of just bailing out with a "stream setup failed" exception.

With this patch, i now get in the log:

Sep 28 13:00:30 tannat audio[23889]: avdtp_ref(0x8066d88): ref=2
Sep 28 13:00:30 tannat audio[23889]: a2dp_source_request_stream: selected SEP 0x8066200
Sep 28 13:00:30 tannat audio[23889]: avdtp_ref(0x8066d88): ref=3
Sep 28 13:00:30 tannat audio[23889]: stream creation in progress
Sep 28 13:00:51 tannat audio[23889]: connect(): Host is down (112)
Sep 28 13:00:51 tannat audio[23889]: avdtp_unref(0x8066d88): ref=2
Sep 28 13:00:51 tannat audio[23889]: Stream setup failed : Host is down
Sep 28 13:00:51 tannat audio[23889]: avdtp_unref(0x8066d88): ref=1
Sep 28 13:00:51 tannat audio[23889]: avdtp_unref(0x8066d88): ref=0
Sep 28 13:00:51 tannat audio[23889]: avdtp_unref(0x8066d88): freeing session and removing from list

Next patch will be the real cross connect fix that uses those error code values.

Could you guys have a look ?

Regards,

Fabien