diff options
| author | Takashi Iwai <tiwai@suse.de> | 2023-07-18 17:12:55 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-07-20 11:00:39 +0300 |
| commit | 6eca69147542686a412b2657c0fd74bc4a38cc44 (patch) | |
| tree | db8bfc65098886858dfb035a49a1a34b5e225077 /drivers | |
| parent | d4e99962d16ce60ac9ecf995489dc60d7854f1bd (diff) | |
| download | linux-6eca69147542686a412b2657c0fd74bc4a38cc44.tar.xz | |
staging: greybus: audio_helper: Use snd_ctl_remove_id()
Use the standard snd_ctl_remove_id() helper function instead of open
code. This allows us to reduce the manual card->rwsem lock in the
caller side.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Johan Hovold <johan@kernel.org>
Cc: Alex Elder <elder@kernel.org>
Cc: greybus-dev@lists.linaro.org
Link: https://lore.kernel.org/r/20230718141304.1032-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/greybus/audio_helper.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/staging/greybus/audio_helper.c b/drivers/staging/greybus/audio_helper.c index 223987616e07..97ce5b9ad7fd 100644 --- a/drivers/staging/greybus/audio_helper.c +++ b/drivers/staging/greybus/audio_helper.c @@ -149,7 +149,6 @@ static int gbaudio_remove_controls(struct snd_card *card, struct device *dev, for (i = 0; i < num_controls; i++) { const struct snd_kcontrol_new *control = &controls[i]; struct snd_ctl_elem_id id; - struct snd_kcontrol *kctl; if (prefix) snprintf(id.name, sizeof(id.name), "%s %s", prefix, @@ -161,17 +160,10 @@ static int gbaudio_remove_controls(struct snd_card *card, struct device *dev, id.device = control->device; id.subdevice = control->subdevice; id.index = control->index; - kctl = snd_ctl_find_id(card, &id); - if (!kctl) { - dev_err(dev, "Failed to find %s\n", control->name); - continue; - } - err = snd_ctl_remove(card, kctl); - if (err < 0) { + err = snd_ctl_remove_id(card, &id); + if (err < 0) dev_err(dev, "%d: Failed to remove %s\n", err, control->name); - continue; - } } return 0; } @@ -181,11 +173,7 @@ int gbaudio_remove_component_controls(struct snd_soc_component *component, unsigned int num_controls) { struct snd_card *card = component->card->snd_card; - int err; - down_write(&card->controls_rwsem); - err = gbaudio_remove_controls(card, component->dev, controls, - num_controls, component->name_prefix); - up_write(&card->controls_rwsem); - return err; + return gbaudio_remove_controls(card, component->dev, controls, + num_controls, component->name_prefix); } |