When detecting zero in 'dbs' field of CIP header, this packet streaming should be aborted because of avoiding division-by-zero. This is an error in an aspect of IEC 61883-1, thus protocol error.
This commit use EPROTO instead of EIO. Actually, the returned value is not used for userspace and this commit has no effect.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- sound/firewire/amdtp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c index 93cf93a..2b3e8b1 100644 --- a/sound/firewire/amdtp.c +++ b/sound/firewire/amdtp.c @@ -726,7 +726,7 @@ static int handle_in_packet(struct amdtp_stream *s, dev_err(&s->unit->device, "Detect invalid value in dbs field: %08X\n", cip_header[0]); - return -EIO; + return -EPROTO; } if (s->flags & CIP_WRONG_DBS) data_block_quadlets = s->data_block_quadlets;