commit edf0b4c690a3bc24c660f9a31035209bbebd3f2a
author Kevin Rocard <krocard@google.com> Fri May 05 09:08:11 2017 -0700
committer Kevin Rocard <krocard@google.com> Wed May 10 12:08:46 2017 -0700
tree 9e9a59acf3da44d79f64108ed3bea8129934c3e6
parent e35d4aff6554719ac78a6d2c3daf0f4c28481897

HAL out_get_parameters: do not return unknown keys

in_get_parameters and adv_get_parameters only return keys that are
supported. That allows the client the discriminate between keys not
supported and empty return value.

Align out_get_parameters with this behaviour.

Test: vts-tradefed run vts --module VtsHalAudioV2_0Target
Test: call/play music/record/video...
Bug: 36311550
Change-Id: Ia6e26dd50b05188099f4414d3c5a3c55f0ea89fa
Signed-off-by: Kevin Rocard <krocard@google.com>

hal/audio_hw.c

diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 30c0637..6ca763e 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -2094,7 +2094,7 @@
         str_parms_add_str(reply, AUDIO_PARAMETER_STREAM_SUP_CHANNELS, value);
         str = str_parms_to_str(reply);
     } else {
-        str = strdup(keys);
+        str = strdup("");
     }
     str_parms_destroy(query);
     str_parms_destroy(reply);