ALSA: firewire-lib: use dev_err() when detecting incoming streaming error

When detecting invalid value in 'dbs' field of CIP header or packet
discontinuity, current implementation reports the status by err_info().
In most cases this state is caused by model-specific issue due to
vendor's customization and should be reported to developers.

This commit use dev_err() instead of dev_info() for this purpose.
In the cases, packet streaming is aborted, thus no message floading
occurs.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/amdtp.c

@@ -723,7 +723,7 @@ static int handle_in_packet(struct amdtp_stream *s,
 			(cip_header[0] & CIP_DBS_MASK) >> CIP_DBS_SHIFT;
 		/* avoid division by zero */
 		if (data_block_quadlets == 0) {
-			dev_info_ratelimited(&s->unit->device,
+			dev_err(&s->unit->device,
 				"Detect invalid value in dbs field: %08X\n",
 				cip_header[0]);
 			return -EIO;
@@ -756,7 +756,7 @@ static int handle_in_packet(struct amdtp_stream *s,
 	}
 
 	if (lost) {
-		dev_info(&s->unit->device,
+		dev_err(&s->unit->device,
 			"Detect discontinuity of CIP: %02X %02X\n",
 			s->data_block_counter, data_block_counter);
 		return -EIO;