ALSA: firewire-tascam: fix an LED bug

We recently tried to add some new code to support turning the LED on and
off but the code in snd_tscm_transaction_reregister() is unreachable.

Fixes: e65e2cb9 ('ALSA: firewire-tascam: Turn on/off FireWire LED')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/tascam/tascam-transaction.c

@@ -249,7 +249,7 @@ int snd_tscm_transaction_reregister(struct snd_tscm *tscm)
 
 	/* Turn on messaging. */
 	reg = cpu_to_be32(0x00000001);
-	return snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
+	err = snd_fw_transaction(tscm->unit, TCODE_WRITE_QUADLET_REQUEST,
 				  TSCM_ADDR_BASE + TSCM_OFFSET_MIDI_TX_ON,
 				  &reg, sizeof(reg), 0);
 	if (err < 0)