From 3d016d57fdc5e6caa4cd67896f4b081bccad6e2c Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Mon, 3 Apr 2017 21:13:40 +0900 Subject: [PATCH] ALSA: oxfw: fix regression to handle Stanton SCS.1m/1d At a commit 6c29230e2a5f ("ALSA: oxfw: delayed registration of sound card"), ALSA oxfw driver fails to handle SCS.1m/1d, due to -EBUSY at a call of snd_card_register(). The cause is that the driver manages to register two rawmidi instances with the same device number 0. This is a regression introduced since kernel 4.7. This commit fixes the regression, by fixing up device property after discovering stream formats. Fixes: 6c29230e2a5f ("ALSA: oxfw: delayed registration of sound card") Cc: # 4.7+ Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/oxfw/oxfw.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c index 74d7fb6efce6..413ab6313bb6 100644 --- a/sound/firewire/oxfw/oxfw.c +++ b/sound/firewire/oxfw/oxfw.c @@ -227,11 +227,11 @@ static void do_registration(struct work_struct *work) if (err < 0) goto error; - err = detect_quirks(oxfw); + err = snd_oxfw_stream_discover(oxfw); if (err < 0) goto error; - err = snd_oxfw_stream_discover(oxfw); + err = detect_quirks(oxfw); if (err < 0) goto error; -- 2.20.1