audio: utils: Print ALSA PCM error messages

tinyalsa's pcm_read() and pcm_write() return -1 when an error
has occurred, which doesn't give enough information about the
actual problem. Use pcm_get_error() to give a human readable
reason of the error.

Change-Id: I6046402859e52e3b5ab10d407ddfe80658098427
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/audio/utils/src/ALSAPcm.cpp b/audio/utils/src/ALSAPcm.cpp
index adbed03..f25633e 100644
--- a/audio/utils/src/ALSAPcm.cpp
+++ b/audio/utils/src/ALSAPcm.cpp
@@ -114,7 +114,7 @@ int ALSAInPort::read(void *buffer, size_t frames)
 
     int ret = pcm_read(mPcm, buffer, bytes);
     if (ret) {
-        ALOGE("ALSAInPort: %s: failed to read %d", getName(), ret);
+        ALOGE("ALSAInPort: %s: failed to read: %s", getName(), pcm_get_error(mPcm));
         return ret;
     }
 
@@ -237,7 +237,7 @@ int ALSAOutPort::write(const void *buffer, size_t frames)
 
     int ret = pcm_write(mPcm, buffer, bytes);
     if (ret) {
-        ALOGE("ALSAOutPort: %s: failed to write %d", getName(), ret);
+        ALOGE("ALSAOutPort: %s: failed to write: %s", getName(), pcm_get_error(mPcm));
         return ret;
     }