ALSA: dice: fix error path to destroy initialized stream data

ALSA: dice: fix error path to destroy initialized stream data

commit 0f925660a7bc49b269c163249a5d06da3a0c7b0a upstream.

In error path of snd_dice_stream_init_duplex(), stream data for incoming
packet can be left to be initialized.

This commit fixes it.

Fixes: 436b5abe2224 ('ALSA: dice: handle whole available isochronous streams')
Cc: <stable@vger.kernel.org> # v4.6+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>