Valid channel mask must have at least one channel

Also:
 - Use correct type name audio_channel_mask_t
 - Use the parameter name 'channelMask' instead of the more ambiguous 'channels'

Change-Id: I22bc1821a1bded0e69fe7d99e7b981ff60d77cee

1 files changed, 4 insertions, 4 deletions

diff --git a/include/system/audio.h b/include/system/audio.h
index c49b0ee..6c260dd 100644
--- a/include/system/audio.h
+++ b/include/system/audio.h
@@ -477,18 +477,18 @@ static inline bool audio_is_remote_submix_device(audio_devices_t device)
         return false;
 }
 
-static inline bool audio_is_input_channel(uint32_t channel)
+static inline bool audio_is_input_channel(audio_channel_mask_t channel)
 {
     if ((channel & ~AUDIO_CHANNEL_IN_ALL) == 0)
-        return true;
+        return channel != 0;
     else
         return false;
 }
 
-static inline bool audio_is_output_channel(uint32_t channel)
+static inline bool audio_is_output_channel(audio_channel_mask_t channel)
 {
     if ((channel & ~AUDIO_CHANNEL_OUT_ALL) == 0)
-        return true;
+        return channel != 0;
     else
         return false;
 }