6.1-stable review patch. If anyone has any objections, please let me know.
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From: Geoffrey D. Bennett g@b4.vu
[ Upstream commit 50603a67daef161c78c814580d57f7f0be57167e ]
The *_ctl_get() functions which call scarlett2_update_*() were not checking the return value. Fix to check the return value and pass to the caller.
Signed-off-by: Geoffrey D. Bennett g@b4.vu Fixes: 9e4d5c1be21f ("ALSA: usb-audio: Scarlett Gen 2 mixer interface") Link: https://lore.kernel.org/r/32a5fdc83b05fa74e0fcdd672fbf71d75c5f0a6d.170300105... Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/usb/mixer_scarlett_gen2.c | 182 +++++++++++++++++++++++--------- 1 file changed, 130 insertions(+), 52 deletions(-)
diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index f8a2ba479b7c..eedac43eee7d 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -1798,14 +1798,20 @@ static int scarlett2_sync_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->sync_updated) - scarlett2_update_sync(mixer); + + if (private->sync_updated) { + err = scarlett2_update_sync(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->sync; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static const struct snd_kcontrol_new scarlett2_sync_ctl = { @@ -1888,14 +1894,20 @@ static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex);
+ if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->master_vol; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int line_out_remap(struct scarlett2_data *private, int index) @@ -1921,14 +1933,20 @@ static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; int index = line_out_remap(private, elem->control); + int err = 0;
mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex);
+ if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->vol[index]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl, @@ -1995,14 +2013,20 @@ static int scarlett2_mute_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; int index = line_out_remap(private, elem->control); + int err = 0;
mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex);
+ if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->mute_switch[index]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_mute_ctl_put(struct snd_kcontrol *kctl, @@ -2248,14 +2272,20 @@ static int scarlett2_level_enum_ctl_get(struct snd_kcontrol *kctl, const struct scarlett2_device_info *info = private->info;
int index = elem->control + info->level_input_first; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->input_other_updated) - scarlett2_update_input_other(mixer); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->level_switch[index]; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_level_enum_ctl_put(struct snd_kcontrol *kctl, @@ -2306,15 +2336,21 @@ static int scarlett2_pad_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->input_other_updated) - scarlett2_update_input_other(mixer); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->pad_switch[elem->control]; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_pad_ctl_put(struct snd_kcontrol *kctl, @@ -2364,14 +2400,20 @@ static int scarlett2_air_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->input_other_updated) - scarlett2_update_input_other(mixer); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->air_switch[elem->control]; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_air_ctl_put(struct snd_kcontrol *kctl, @@ -2421,15 +2463,21 @@ static int scarlett2_phantom_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->input_other_updated) - scarlett2_update_input_other(mixer); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->phantom_switch[elem->control]; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_phantom_ctl_put(struct snd_kcontrol *kctl, @@ -2601,14 +2649,20 @@ static int scarlett2_direct_monitor_ctl_get( struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = elem->head.mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->monitor_other_updated) - scarlett2_update_monitor_other(mixer); + + if (private->monitor_other_updated) { + err = scarlett2_update_monitor_other(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->direct_monitor_switch; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_direct_monitor_ctl_put( @@ -2708,14 +2762,20 @@ static int scarlett2_speaker_switch_enum_ctl_get( struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->monitor_other_updated) - scarlett2_update_monitor_other(mixer); + + if (private->monitor_other_updated) { + err = scarlett2_update_monitor_other(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->speaker_switching_switch; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
/* when speaker switching gets enabled, switch the main/alt speakers @@ -2863,14 +2923,20 @@ static int scarlett2_talkback_enum_ctl_get( struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->monitor_other_updated) - scarlett2_update_monitor_other(mixer); + + if (private->monitor_other_updated) { + err = scarlett2_update_monitor_other(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->talkback_switch; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_talkback_enum_ctl_put( @@ -3018,14 +3084,20 @@ static int scarlett2_dim_mute_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_elem_info *elem = kctl->private_data; struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; + int err = 0;
mutex_lock(&private->data_mutex); - if (private->vol_updated) - scarlett2_update_volumes(mixer); - mutex_unlock(&private->data_mutex);
+ if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.integer.value[0] = private->dim_mute[elem->control]; - return 0; + +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_dim_mute_ctl_put(struct snd_kcontrol *kctl, @@ -3396,14 +3468,20 @@ static int scarlett2_mux_src_enum_ctl_get(struct snd_kcontrol *kctl, struct usb_mixer_interface *mixer = elem->head.mixer; struct scarlett2_data *private = mixer->private_data; int index = line_out_remap(private, elem->control); + int err = 0;
mutex_lock(&private->data_mutex); - if (private->mux_updated) - scarlett2_usb_get_mux(mixer); + + if (private->mux_updated) { + err = scarlett2_usb_get_mux(mixer); + if (err < 0) + goto unlock; + } ucontrol->value.enumerated.item[0] = private->mux[index]; - mutex_unlock(&private->data_mutex);
- return 0; +unlock: + mutex_unlock(&private->data_mutex); + return err; }
static int scarlett2_mux_src_enum_ctl_put(struct snd_kcontrol *kctl,