From 3c194923154132836d143d9ba37f5ee94d790c75 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: 947b437e1263 ("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 791efa5585c2..8a7da86650ea 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, -- 2.30.2