From cd3fc5a64ae982288f804164eb3c72a89acb0bc5 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Fri, 24 May 2019 18:03:39 +0900 Subject: [PATCH] ALSA: firewire-lib: fix data block counter for incoming packet without CIP header The value of data block counter is not calculated for incoming packet without CIP header. This commit fixes the bug. Fixes: d076f2a06de3 ("ALSA: firewire-lib: unify packet handler for IR context") Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/amdtp-stream.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 791efa5585c2a..8a7da86650ea3 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -674,6 +674,8 @@ static int handle_in_packet(struct amdtp_stream *s, unsigned int cycle, cip_header = NULL; data_blocks = payload_length / 4 / s->data_block_quadlets; syt = 0; + s->data_block_counter = + (s->data_block_counter + data_blocks) & 0xff; } trace_amdtp_packet(s, cycle, cip_header, payload_length, data_blocks, -- 2.39.5