From: Takashi Iwai <tiwai@xxxxxxx>
commit fe85f6e607d75b856e7229924c71f55e005f8284 upstream.
The current code clears the bank selection MSB/LSB after sending a
program change, but this can be wrong, as many apps may not send the
full bank selection with both MSB and LSB but sending only one.
Better to keep the previous bank set.
Fixes: 0b5288f5fe63 ("ALSA: ump: Add legacy raw MIDI support")
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240529083823.5778-1-tiwai@xxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/core/ump_convert.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sound/core/ump_convert.c b/sound/core/ump_convert.c
index de04799fdb69..f67c44c83fde 100644
--- a/sound/core/ump_convert.c
+++ b/sound/core/ump_convert.c
@@ -404,7 +404,6 @@ static int cvt_legacy_cmd_to_ump(struct ump_cvt_to_ump *cvt,
midi2->pg.bank_msb = cc->cc_bank_msb;
midi2->pg.bank_lsb = cc->cc_bank_lsb;
cc->bank_set = 0;
- cc->cc_bank_msb = cc->cc_bank_lsb = 0;
}
break;
case UMP_MSG_STATUS_CHANNEL_PRESSURE:
--
2.45.2
Patches currently in stable-queue which might be from tiwai@xxxxxxx are
queue-6.6/alsa-ump-don-t-clear-bank-selection-after-sending-a-program-change.patch
queue-6.6/alsa-ump-don-t-accept-an-invalid-ump-protocol-number.patch
