[PATCH 4.9 39/59] ALSA: firewire-tascam: Fix to handle error from initialization of stream data

From: Greg Kroah-Hartman
Date: Fri Jan 13 2017 - 07:03:30 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>

commit 6a2a2f45560a9cb7bc49820883b042e44f83726c upstream.

This module has a bug not to return error code in a case that data
structure for transmitted packets fails to be initialized.

This commit fixes the bug.

Fixes: 35efa5c489de ("ALSA: firewire-tascam: add streaming functionality")
Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
sound/firewire/tascam/tascam-stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/firewire/tascam/tascam-stream.c
+++ b/sound/firewire/tascam/tascam-stream.c
@@ -343,7 +343,7 @@ int snd_tscm_stream_init_duplex(struct s
if (err < 0)
amdtp_stream_destroy(&tscm->rx_stream);

- return 0;
+ return err;
}

/* At bus reset, streaming is stopped and some registers are clear. */