[v2] coreaudio: Always return 0 in handle_voice_change

Commit Message

Akihiko Odaki March 6, 2022, 12:34 p.m. UTC

handle_voice_change() is a CoreAudio callback function as of CoreAudio type
AudioObjectPropertyListenerProc, and for the latter MacOSX.sdk/System/
Library/Frameworks/CoreAudio.framework/Headers/AudioHardware.h
says "The return value is currently unused and should always be 0.".

Signed-off-by: Akihiko Odaki <[e-mail]>
---
 audio/coreaudio.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Philippe Mathieu-Daudé March 6, 2022, 9:44 p.m. UTC | #1

On 6/3/22 13:34, Akihiko Odaki wrote:
> handle_voice_change() is a CoreAudio callback function as of CoreAudio type
> AudioObjectPropertyListenerProc, and for the latter MacOSX.sdk/System/
> Library/Frameworks/CoreAudio.framework/Headers/AudioHardware.h
> says "The return value is currently unused and should always be 0.".
> 
> Signed-off-by: Akihiko Odaki <[e-mail]>
> ---
>   audio/coreaudio.c | 6 ++----
>   1 file changed, 2 insertions(+), 4 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>

Patch

diff --git a/audio/coreaudio.c b/audio/coreaudio.c
index 0f19d0ce01c..91445096358 100644
--- a/audio/coreaudio.c
+++ b/audio/coreaudio.c
@@ -540,7 +540,6 @@  static OSStatus handle_voice_change(
     const AudioObjectPropertyAddress *in_addresses,
     void *in_client_data)
 {
-    OSStatus status;
     coreaudioVoiceOut *core = in_client_data;
 
     qemu_mutex_lock_iothread();
@@ -549,13 +548,12 @@  static OSStatus handle_voice_change(
         fini_out_device(core);
     }
 
-    status = init_out_device(core);
-    if (!status) {
+    if (!init_out_device(core)) {
         update_device_playback_state(core);
     }
 
     qemu_mutex_unlock_iothread();
-    return status;
+    return 0;
 }
 
 static int coreaudio_init_out(HWVoiceOut *hw, struct audsettings *as,