From 918183adc6459c8126322c2ddf8672b502789d73 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Thu, 3 Sep 2015 15:40:36 -0700
Subject: [PATCH] ALSA: be ready for /dev/snd to not be available

If this occurs, the system has no ALSA support in the kernel,
and it is appropriate for the backend to fail.

closes #6
---
 src/alsa.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/alsa.cpp b/src/alsa.cpp
index 8e779a6..055efb0 100644
--- a/src/alsa.cpp
+++ b/src/alsa.cpp
@@ -1814,13 +1814,14 @@ int soundio_alsa_init(SoundIoPrivate *si) {
         assert(err != EFAULT);
         assert(err != EINVAL);
         assert(err != ENAMETOOLONG);
-        assert(err != ENOENT);
         destroy_alsa(si);
         if (err == ENOSPC) {
             return SoundIoErrorSystemResources;
-        } else {
-            assert(err == ENOMEM);
+        } else if (err == ENOMEM) {
             return SoundIoErrorNoMem;
+        } else {
+            // Kernel must not have ALSA support.
+            return SoundIoErrorInitAudioBackend;
         }
     }