ALSA: dice: fix memory leak when unplugging

When sound card is going to be released, dice private data is
also released. Then all of data should be released. However,
stream data is not released. This causes memory leak when
unplugging dice unit.

This commit fixes the bug.

Fixes: 4bdc495c87b3('ALSA: dice: handle several PCM substreams when any isochronous streams are available')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
index 845d5e5884a4af0bec211e0aa8aa643cb00df9e0..ec4db3a514fce3c4f16c2b8c38a71ad2e9a77d4e 100644 (file)
--- a/sound/firewire/dice/dice-stream.c
+++ b/sound/firewire/dice/dice-stream.c
@@ -446,18 +446,12 @@ end:
 
 void snd_dice_stream_destroy_duplex(struct snd_dice *dice)
 {
-       struct reg_params tx_params, rx_params;
-
-       snd_dice_transaction_clear_enable(dice);
+       unsigned int i;
 
-       if (get_register_params(dice, &tx_params, &rx_params) == 0) {
-               stop_streams(dice, AMDTP_IN_STREAM, &tx_params);
-               stop_streams(dice, AMDTP_OUT_STREAM, &rx_params);
+       for (i = 0; i < MAX_STREAMS; i++) {
+               destroy_stream(dice, AMDTP_IN_STREAM, i);
+               destroy_stream(dice, AMDTP_OUT_STREAM, i);
        }
-
-       release_resources(dice);
-
-       dice->substreams_counter = 0;
 }
 
 void snd_dice_stream_update_duplex(struct snd_dice *dice)