From: Takashi Iwai tiwai@suse.de
stable inclusion from stable-v6.6.34 commit 3113ff8e496ce0fc0ffa6bb17c5d227f79ccc3ac category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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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@vger.kernel.org Link: https://lore.kernel.org/r/20240529083823.5778-1-tiwai@suse.de Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Wang Hai wanghai38@huawei.com --- 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: