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: <stable@vger.kernel.org> # 4.7+
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
index 74d7fb6efce6ca8258ece95a83c3460588a3e99e..413ab6313bb66515c284734ca92c87bef014c5fd 100644 (file)
--- 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;