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| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2015-08-21 14:25:34 +0300 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2015-08-21 14:12:45 +0200 |
| commit | 9e46aedab389122948144713ee5b8bae2658fb1b (patch) | |
| tree | a6dd9088d72cd76b056d58be16233ffe227b4781 /sound/pci/rme9652/hdsp.c | |
| parent | ALSA: hdac: add snd_hdac_refresh_widget_sysfs() (diff) | |
| download | linux-dev-9e46aedab389122948144713ee5b8bae2658fb1b.tar.xz linux-dev-9e46aedab389122948144713ee5b8bae2658fb1b.zip | |
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>
Diffstat (limited to '')
| -rw-r--r-- | sound/pci/rme9652/hdsp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c index c19e021ccf66..468a95cdce70 100644 --- a/sound/pci/rme9652/hdsp.c +++ b/sound/pci/rme9652/hdsp.c @@ -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: |