[PATCH] libpoke/ios-dev-stream.c: free buffer only in read mode

[Mohammad-Reza Nabipoor]

The `buffer` field of `struct ios_dev_stream` is only valid in
read mode.
---
 libpoke/ios-dev-stream.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libpoke/ios-dev-stream.c b/libpoke/ios-dev-stream.c
index 1258bfe5..0832011c 100644
--- a/libpoke/ios-dev-stream.c
+++ b/libpoke/ios-dev-stream.c
@@ -118,7 +118,8 @@ ios_dev_stream_close (void *iod)
 {
   struct ios_dev_stream *sio = iod;
 
-  ios_buffer_free (sio->buffer);
+  if (sio->flags & IOS_F_READ)
+    ios_buffer_free (sio->buffer);
   free (sio);
 
   return 1;
-- 
2.28.0