rawmidi: stream_pair: just return when character device is not opened

It's programming mistake when operating without opening character device.

This commit uses GLib macro just return in the case with warnings.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>

diff --git a/src/rawmidi/stream-pair.c b/src/rawmidi/stream-pair.c
index 04fe5d3d73ddcec4e607b29afc5c698f63f744f4..77cb2570bc2b40307ca6c51121bf105da4e5e400 100644 (file)
--- a/src/rawmidi/stream-pair.c
+++ b/src/rawmidi/stream-pair.c
@@ -254,15 +254,11 @@ void alsarawmidi_stream_pair_get_protocol_version(ALSARawmidiStreamPair *self,
 
     g_return_if_fail(ALSARAWMIDI_IS_STREAM_PAIR(self));
     priv = alsarawmidi_stream_pair_get_instance_private(self);
+    g_return_if_fail(priv->fd >= 0);
 
     g_return_if_fail(proto_ver_triplet != NULL);
     g_return_if_fail(error == NULL || *error == NULL);
 
-    if (priv->fd < 0) {
-        generate_error(error, ENXIO);
-        return;
-    }
-
     *proto_ver_triplet = (const guint16 *)priv->proto_ver_triplet;
 }
 
@@ -574,15 +570,11 @@ void alsarawmidi_stream_pair_create_source(ALSARawmidiStreamPair *self,
 
     g_return_if_fail(ALSARAWMIDI_IS_STREAM_PAIR(self));
     priv = alsarawmidi_stream_pair_get_instance_private(self);
+    g_return_if_fail(priv->fd >= 0);
 
     g_return_if_fail(gsrc != NULL);
     g_return_if_fail(error == NULL || *error == NULL);
 
-    if (priv->fd < 0) {
-        generate_error(error, ENXIO);
-        return;
-    }
-
     access_modes = fcntl(priv->fd, F_GETFL);
     if (access_modes < 0) {
         generate_error(error, errno);