From 1aae655d24339d3fd07e7a98c64b867365202dff Mon Sep 17 00:00:00 2001
From: Lars Immisch <lars@ibp.de>
Date: Wed, 28 Feb 2018 00:35:26 +0100
Subject: [PATCH] Update periodsize only after `alsapcm_setup` succeeded

---
 alsaaudio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/alsaaudio.c b/alsaaudio.c
index 212be10..ad56a55 100644
--- a/alsaaudio.c
+++ b/alsaaudio.c
@@ -743,7 +743,6 @@ alsapcm_setperiodsize(alsapcm_t *self, PyObject *args)
         return NULL;
     }
 
-    self->periodsize = periodsize;
     res = alsapcm_setup(self);
     if (res < 0)
     {
@@ -752,6 +751,8 @@ alsapcm_setperiodsize(alsapcm_t *self, PyObject *args)
 
         return NULL;
     }
+
+    self->periodsize = periodsize;
     return PyLong_FromLong(self->periodsize);
 }