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ALSA: firewire-lib: fix data block counter for incoming packet without CIP header

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The value of data block counter is not calculated for incoming packet
without CIP header. This commit fixes the bug.

Fixes: 947b437e12 ("ALSA: firewire-lib: unify packet handler for IR context")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2019-05-24 18:03:39 +09:00 committed by Takashi Iwai
parent b18f0cfaf1
commit 3c19492315
1 changed files with 2 additions and 0 deletions
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2
sound/firewire/amdtp-stream.c
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@ -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,