hal: Initialize out_devices to empty list.

Initialize out_devices to empty list
before calling platform_get_input_snd_device.

Change-Id: I3cedbeeed0a4d61e643cde1ab8846d068180f5c2
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 13910f6..8c17f76 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -2621,7 +2621,10 @@
             ALOGE("%s: stream.inout is NULL", __func__);
             return -EINVAL;
         }
-        in_snd_device = platform_get_input_snd_device(adev->platform, NULL, NULL, usecase->type);
+        struct listnode out_devices;
+        list_init(&out_devices);
+        in_snd_device = platform_get_input_snd_device(adev->platform, NULL,
+                                                      &out_devices, usecase->type);
         assign_devices(&usecase->device_list,
                        &usecase->stream.inout->in_config.device_list);
     } else {