Commit 9e46aeda authored Aug 21, 2015 by Dan Carpenter Committed by Takashi Iwai Aug 21, 2015

ALSA: hdsp: silence and underflow warning



I believe this probably cannot happen, as the code suggests.  There
would have to be an kcontrol->index.id which was zero, otherwise this
would be prevented in snd_ctl_find_id().  But snd_BUG_ON() is just a
WARN() or a no-op so static checkers complain that we keep on going with
a negative offset.  Let's just handle the error as well as printing
a warning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

parent 18dfd79d

sound/pci/rme9652/hdsp.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -2806,7 +2806,8 @@ static int snd_hdsp_get_adat_sync_check(struct snd_kcontrol *kcontrol, struct sn
		struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);

		offset = ucontrol->id.index - 1;
		snd_BUG_ON(offset < 0);
		if (snd_BUG_ON(offset < 0))
		return -EINVAL;

		switch (hdsp->io_type) {
		case Digiface: