rawmidi: allow timestamp reads only for the appropriate read mode

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/src/rawmidi/rawmidi.c b/src/rawmidi/rawmidi.c
index 9fab63f1e2285b1e288c8bb3b80edde8aead41b3..58557e577edab4877cff534c884eeb9788fefdc7 100644 (file)
--- a/src/rawmidi/rawmidi.c
+++ b/src/rawmidi/rawmidi.c
@@ -1112,5 +1112,7 @@ ssize_t snd_rawmidi_tread(snd_rawmidi_t *rawmidi, struct timespec *tstamp, void
        assert(rawmidi);
        assert(rawmidi->stream == SND_RAWMIDI_STREAM_INPUT);
        assert(buffer || size == 0);
+       if ((rawmidi->params_mode & SNDRV_RAWMIDI_MODE_FRAMING_MASK) == SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP)
+               return -EINVAL;
        return (rawmidi->ops->tread)(rawmidi, tstamp, buffer, size);
 }