From 213fa98981588887c1a2ed817e6a48e2428e97a1 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Sun, 7 Jul 2019 21:07:56 +0900 Subject: [PATCH] ALSA: firewire-lib: fix different data block counter between probed event and transferred isochronous packet For IT context, tracepoints event is probed after calculating next data block counter. This brings difference of data block counter between the probed event and actual isochronous packet. This commit fixes it. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/amdtp-stream.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 3d410057eaa4..9259375caac4 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -510,13 +510,13 @@ static void build_it_pkt_header(struct amdtp_stream *s, unsigned int cycle, cip_header = NULL; } + trace_amdtp_packet(s, cycle, cip_header, payload_length, data_blocks, + index); + if (!(s->flags & CIP_DBC_IS_END_EVENT)) { s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff; } - - trace_amdtp_packet(s, cycle, cip_header, payload_length, data_blocks, - index); } static int check_cip_header(struct amdtp_stream *s, const __be32 *buf,