[PATCH] switch-on-connect: Don't move a stream already moving

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When switching profiles, module-bluetooth starts to move all streams
from the destroyed sink (resp. source) to the newly created sink (resp. source).
At the same time, module-switch-on-connect detects that a new sink (resp. source)
 is created and tries to move all the streams to it. This crashes as follow:

(gdb) bt
0  0xb7ee42f0 in sink_input_may_move_to_cb (i=0x80d9b48, dest=0x80dd3f8)
   at modules/module-loopback.c:641
1  0xb7d10627 in pa_sink_input_may_move_to (i=0x80d9b48, dest=0x80dd3f8)
   at pulsecore/sink-input.c:1426
2  0xb7d11c94 in pa_sink_input_move_to (i=0x80d9b48, dest=0x80dd3f8,
save=false)
   at pulsecore/sink-input.c:1730
3  0xb7ec4f53 in sink_put_hook_callback (c=0x807be88, sink=0x80dd3f8,
userdata=0x80abb70)
   at modules/module-switch-on-connect.c:93
4  0xb7ceda5e in pa_hook_fire (hook=0x807c010, data=0x80dd3f8)
   at pulsecore/hook-list.c:106
5  0xb7d16863 in pa_sink_put (s=0x80dd3f8) at pulsecore/sink.c:651
6  0xb7d7b26b in start_thread (u=0x80a68b0)
   at modules/bluetooth/module-bluetooth-device.c:2571
7  0xb7d7ba8a in card_set_profile (c=0x80a9530, new_profile=0x80a2b98)
   at modules/bluetooth/module-bluetooth-device.c:2680

This logic is already implemented in module-device-manager.
---
 src/modules/module-switch-on-connect.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/modules/module-switch-on-connect.c b/src/modules/module-switch-on-connect.c
index efe1270..d0bdf9e 100644
--- a/src/modules/module-switch-on-connect.c
+++ b/src/modules/module-switch-on-connect.c
@@ -87,6 +87,10 @@ static pa_hook_result_t sink_put_hook_callback(pa_core *c, pa_sink *sink, void*
     }
 
     PA_IDXSET_FOREACH(i, def->inputs, idx) {
+        /* Skip this if it is already in the process of being moved anyway */
+        if (!i->sink)
+            continue;
+
         if (i->save_sink || !PA_SINK_INPUT_IS_LINKED(i->state))
             continue;
 
@@ -140,6 +144,10 @@ static pa_hook_result_t source_put_hook_callback(pa_core *c, pa_source *source,
     }
 
     PA_IDXSET_FOREACH(o, def->outputs, idx) {
+        /* Skip this if it is already in the process of being moved anyway */
+        if (!o->source)
+            continue;
+
         if (o->save_source || !PA_SOURCE_OUTPUT_IS_LINKED(o->state))
             continue;
 
-- 
1.7.9.5



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