[04/11] ALSA: scarlett2: Add missing error checks to *_ctl_get()

Message ID	32a5fdc83b05fa74e0fcdd672fbf71d75c5f0a6d.1703001053.git.g@b4.vu (mailing list archive)
State	New, archived
Headers	show Received: from m.b4.vu (m.b4.vu [203.16.231.148]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 460F731755 for <linux-sound@vger.kernel.org>; Tue, 19 Dec 2023 17:37:38 +0000 (UTC) Date: Wed, 20 Dec 2023 04:07:37 +1030 From: "Geoffrey D. Bennett" <g@b4.vu> To: Takashi Iwai <tiwai@suse.de> Cc: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>, alsa-devel@alsa-project.org, linux-sound@vger.kernel.org Subject: [PATCH 04/11] ALSA: scarlett2: Add missing error checks to *_ctl_get() Message-ID: <32a5fdc83b05fa74e0fcdd672fbf71d75c5f0a6d.1703001053.git.g@b4.vu> References: <cover.1703001053.git.g@b4.vu> Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <cover.1703001053.git.g@b4.vu>
Series	ALSA: scarlett2: Firmware Upgrade and Error Handling Improvements \| expand [00/11] ALSA: scarlett2: Firmware Upgrade and Error Handling Improvements [01/11] ALSA: scarlett2: Update maintainer info [02/11] ALSA: scarlett2: Add missing error check to scarlett2_config_save() [03/11] ALSA: scarlett2: Add missing error check to scarlett2_usb_set_config() [04/11] ALSA: scarlett2: Add missing error checks to *_ctl_get() [05/11] ALSA: scarlett2: Add clamp() in scarlett2_mixer_ctl_put() [06/11] ALSA: scarlett2: Add missing mutex lock around get meter levels [07/11] ALSA: scarlett2: Add #defines for firmware upgrade [08/11] ALSA: scarlett2: Retrieve useful flash segment numbers [09/11] ALSA: scarlett2: Add skeleton hwdep/ioctl interface [10/11] ALSA: scarlett2: Add ioctl commands to erase flash segments [11/11] ALSA: scarlett2: Add support for uploading new firmware

diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index 22285d8038c1..373911937487 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -2100,14 +2100,20 @@ 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 = { @@ -2190,14 +2196,20 @@ 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) @@ -2223,14 +2235,20 @@ 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, @@ -2297,14 +2315,20 @@ 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, @@ -2550,14 +2574,20 @@ 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, @@ -2608,15 +2638,21 @@ 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, @@ -2666,14 +2702,20 @@ 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, @@ -2723,15 +2765,21 @@ 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, @@ -2903,14 +2951,20 @@ 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( @@ -3010,14 +3064,20 @@ 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 @@ -3165,14 +3225,20 @@ 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( @@ -3320,14 +3386,20 @@ 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, @@ -3698,14 +3770,20 @@ 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,

[04/11] ALSA: scarlett2: Add missing error checks to *_ctl_get()

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Patch