From 6ea63c6a3aa773532fcdef2a2806c8ba499531fe Mon Sep 17 00:00:00 2001 From: Geraldo Nascimento Date: Sat, 4 Dec 2021 15:52:24 -0300 Subject: [PATCH] ALSA: usb-audio: Reorder snd_djm_devices[] entries Olivia Mackintosh has posted to alsa-devel reporting that there's a potential bug that could break mixer quirks for Pioneer devices introduced by eef582467bec4370ea2f703c32404a88e472ff91 "ALSA: usb-audio: Add support for the Pioneer DJM 750MK2 Mixer/Soundcard". This happened because the DJM 750 MK2 was added last to the Pioneer DJM device table index and defined as 0x4 but was added to snd_djm_devices[] just after the DJM 750 (MK1) entry instead of last, after the DJM 900 NXS2. This escaped review. To prevent that from ever happening again, Takashi Iwai suggested to use C99 array designators in snd_djm_devices[] instead of simply reordering the entries. Fixes: eef582467bec ("ALSA: usb-audio: Add support for the Pioneer DJM 750MK2") Reported-by: Olivia Mackintosh Suggested-by: Takashi Iwai Signed-off-by: Geraldo Nascimento Link: https://lore.kernel.org/r/Yau46FDzoql0SNnW@geday Signed-off-by: Takashi Iwai --- sound/usb/mixer_quirks.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index d489c1de3baec..823b6b8de942d 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -3016,11 +3016,11 @@ static const struct snd_djm_ctl snd_djm_ctls_750mk2[] = { static const struct snd_djm_device snd_djm_devices[] = { - SND_DJM_DEVICE(250mk2), - SND_DJM_DEVICE(750), - SND_DJM_DEVICE(750mk2), - SND_DJM_DEVICE(850), - SND_DJM_DEVICE(900nxs2) + [SND_DJM_250MK2_IDX] = SND_DJM_DEVICE(250mk2), + [SND_DJM_750_IDX] = SND_DJM_DEVICE(750), + [SND_DJM_850_IDX] = SND_DJM_DEVICE(850), + [SND_DJM_900NXS2_IDX] = SND_DJM_DEVICE(900nxs2), + [SND_DJM_750MK2_IDX] = SND_DJM_DEVICE(750mk2), }; -- 2.39.5