audio_alsaops: fix format conversion error handling bug

Returns a invalid format after fatal error,
instead of "0", which equals to PCM_FORMAT_S16_LE or
AUDIO_FORMAT_DEFAULT.

Also fix below build error:
hardware/libhardware/include/hardware/audio_alsaops.h:63:16:
error: cannot initialize return object of type 'enum pcm_format' with an rvalue of type 'int'
        return 0;
hardware/libhardware/include/hardware/audio_alsaops.h:97:16:
error: cannot initialize return object of type 'audio_format_t' with an rvalue of type 'int'
        return 0;

Signed-off-by: Jindong <jindong.yue@nxp.com>
Change-Id: Iabf5ae106d9c371c00ad5236326c6f38d1a9f116

1 files changed, 2 insertions, 2 deletions

diff --git a/include/hardware/audio_alsaops.h b/include/hardware/audio_alsaops.h
index 6a17a351..476c311f 100644
--- a/include/hardware/audio_alsaops.h
+++ b/include/hardware/audio_alsaops.h
@@ -60,7 +60,7 @@ static inline enum pcm_format pcm_format_from_audio_format(audio_format_t format
     case AUDIO_FORMAT_PCM_FLOAT:  /* there is no equivalent for float */
     default:
         LOG_ALWAYS_FATAL("pcm_format_from_audio_format: invalid audio format %#x", format);
-        return 0;
+        return PCM_FORMAT_INVALID;  /* doesn't get here, assert called above */
     }
 }
 
@@ -94,7 +94,7 @@ static inline audio_format_t audio_format_from_pcm_format(enum pcm_format format
 #endif
     default:
         LOG_ALWAYS_FATAL("audio_format_from_pcm_format: invalid pcm format %#x", format);
-        return 0;
+        return AUDIO_FORMAT_INVALID;  /* doesn't get here, assert called above */
     }
 }