| Message ID | 20221216100239.577805-2-arteme@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | b8800d324abb50160560c636bfafe2c81001b66c |
| Headers | show |
| Series | [1/2] sound: line6: correct midi status byte when receiving data from podxt | expand |
diff --git a/sound/usb/line6/midi.c b/sound/usb/line6/midi.c index 335f8d531548..fbcb55b6e8b0 100644 --- a/sound/usb/line6/midi.c +++ b/sound/usb/line6/midi.c @@ -44,7 +44,8 @@ static void line6_midi_transmit(struct snd_rawmidi_substream *substream) int req, done; for (;;) { - req = min(line6_midibuf_bytes_free(mb), line6->max_packet_size); + req = min3(line6_midibuf_bytes_free(mb), line6->max_packet_size, + LINE6_FALLBACK_MAXPACKETSIZE); done = snd_rawmidi_transmit_peek(substream, chunk, req); if (done == 0)
Correctly calculate available space including the size of the chunk buffer. This fixes a buffer overflow when multiple MIDI sysex messages are sent to a PODxt device. Signed-off-by: Artem Egorkine <arteme@gmail.com> --- sound/usb/line6/midi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)