diff options
| -rw-r--r-- | backends/midi/alsa.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/backends/midi/alsa.cpp b/backends/midi/alsa.cpp index 5110734a18..bc8fab6a56 100644 --- a/backends/midi/alsa.cpp +++ b/backends/midi/alsa.cpp @@ -183,6 +183,11 @@ void MidiDriver_ALSA::close() { } void MidiDriver_ALSA::send(uint32 b) { + if (!_isOpen) { + warning("MidiDriver_ALSA: Got event while not open"); + return; + } + unsigned int midiCmd[4]; ev.type = SND_SEQ_EVENT_OSS; @@ -256,6 +261,11 @@ void MidiDriver_ALSA::send(uint32 b) { } void MidiDriver_ALSA::sysEx(const byte *msg, uint16 length) { + if (!_isOpen) { + warning("MidiDriver_ALSA: Got SysEx while not open"); + return; + } + unsigned char buf[266]; assert(length + 2 <= ARRAYSIZE(buf)); |