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 <o-takashi@xxxxxxxxxxxxx>
---
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,
--
2.20.1
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