Merge tag 'sound-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A fair amount of commits at this time due to ASoC PR merge, but all
  look small and easy, mostly device-specific fixes spanned in various
  drivers. Hopefully this should be the last big chunk for 6.1"

* tag 'sound-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
  ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book Pro 360
  ALSA: hda/realtek: fix speakers for Samsung Galaxy Book Pro
  ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open()
  ASoC: stm32: dfsdm: manage cb buffers cleanup
  ASoC: sof_es8336: reduce pop noise on speaker
  ASoC: SOF: topology: No need to assign core ID if token parsing failed
  ASoC: soc-utils: Remove __exit for snd_soc_util_exit()
  ASoC: rt5677: fix legacy dai naming
  ASoC: rt5514: fix legacy dai naming
  ASoC: SOF: ipc3-topology: use old pipeline teardown flow with SOF2.1 and older
  ASoC: hda: intel-dsp-config: add ES83x6 quirk for IceLake
  ASoC: Intel: soc-acpi: add ES83x6 support to IceLake
  ASoC: tas2780: Fix set_tdm_slot in case of single slot
  ASoC: tas2764: Fix set_tdm_slot in case of single slot
  ASoC: tas2770: Fix set_tdm_slot in case of single slot
  ASoC: fsl_asrc fsl_esai fsl_sai: allow CONFIG_PM=N
  ASoC: core: Fix use-after-free in snd_soc_exit()
  MAINTAINERS: update Tzung-Bi's email address
  ASoC: Intel: bytcht_es8316: Add quirk for the Nanote UMPC-01
  ASoC: amd: yc: Add Alienware m17 R5 AMD into DMI table
  ...

.mailmap

@@ -416,6 +416,7 @@ TripleX Chung <xxx.phy@gmail.com> <triplex@zh-kernel.org>
 TripleX Chung <xxx.phy@gmail.com> <zhongyu@18mail.cn>
 Tsuneo Yoshioka <Tsuneo.Yoshioka@f-secure.com>
 Tycho Andersen <tycho@tycho.pizza> <tycho@tycho.ws>
+Tzung-Bi Shih <tzungbi@kernel.org> <tzungbi@google.com>
 Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
 Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
 Uwe Kleine-König <ukleinek@strlen.de>

Documentation/devicetree/bindings/sound/google,cros-ec-codec.yaml

@@ -8,7 +8,7 @@ title: Audio codec controlled by ChromeOS EC
 
 maintainers:
   - Cheng-Yi Chiang <cychiang@chromium.org>
-  - Tzung-Bi Shih <tzungbi@google.com>
+  - Tzung-Bi Shih <tzungbi@kernel.org>
 
 description: |
   Google's ChromeOS EC codec is a digital mic codec provided by the

Documentation/devicetree/bindings/sound/realtek,rt1015p.yaml

@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Realtek rt1015p codec devicetree bindings
 
 maintainers:
-  - Tzung-Bi Shih <tzungbi@google.com>
+  - Tzung-Bi Shih <tzungbi@kernel.org>
 
 description: |
   Rt1015p is a rt1015 variant which does not support I2C and

MAINTAINERS

@@ -4911,7 +4911,7 @@ F:	drivers/platform/chrome/
 
 CHROMEOS EC CODEC DRIVER
 M:	Cheng-Yi Chiang <cychiang@chromium.org>
-M:	Tzung-Bi Shih <tzungbi@google.com>
+M:	Tzung-Bi Shih <tzungbi@kernel.org>
 R:	Guenter Roeck <groeck@chromium.org>
 L:	chrome-platform@lists.linux.dev
 S:	Maintained

include/sound/sof/info.h

@@ -36,6 +36,10 @@ enum sof_ipc_ext_data {
 	SOF_IPC_EXT_USER_ABI_INFO	= 4,
 };
 
+/* Build u32 number in format MMmmmppp */
+#define SOF_FW_VER(MAJOR, MINOR, PATCH) ((uint32_t)( \
+	((MAJOR) << 24) | ((MINOR) << 12) | (PATCH)))
+
 /* FW version - SOF_IPC_GLB_VERSION */
 struct sof_ipc_fw_version {
 	struct sof_ipc_hdr hdr;

sound/hda/intel-dsp-config.c

@@ -320,6 +320,11 @@ static const struct config_entry config_table[] = {
 			{}
 		}
 	},
+	{
+		.flags = FLAG_SOF,
+		.device = 0x34c8,
+		.codec_hid =  &essx_83x6,
+	},
 	{
 		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 		.device = 0x34c8,

sound/pci/hda/patch_realtek.c

@@ -9436,6 +9436,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x144d, 0xc176, "Samsung Notebook 9 Pro (NP930MBE-K04US)", ALC298_FIXUP_SAMSUNG_AMP),
 	SND_PCI_QUIRK(0x144d, 0xc189, "Samsung Galaxy Flex Book (NT950QCG-X716)", ALC298_FIXUP_SAMSUNG_AMP),
 	SND_PCI_QUIRK(0x144d, 0xc18a, "Samsung Galaxy Book Ion (NP930XCJ-K01US)", ALC298_FIXUP_SAMSUNG_AMP),
+	SND_PCI_QUIRK(0x144d, 0xc1a3, "Samsung Galaxy Book Pro (NP935XDB-KC1SE)", ALC298_FIXUP_SAMSUNG_AMP),
+	SND_PCI_QUIRK(0x144d, 0xc1a6, "Samsung Galaxy Book Pro 360 (NP930QBD)", ALC298_FIXUP_SAMSUNG_AMP),
 	SND_PCI_QUIRK(0x144d, 0xc740, "Samsung Ativ book 8 (NP870Z5G)", ALC269_FIXUP_ATIV_BOOK_8),
 	SND_PCI_QUIRK(0x144d, 0xc812, "Samsung Notebook Pen S (NT950SBE-X58)", ALC298_FIXUP_SAMSUNG_AMP),
 	SND_PCI_QUIRK(0x144d, 0xc830, "Samsung Galaxy Book Ion (NT950XCJ-X716A)", ALC298_FIXUP_SAMSUNG_AMP),

sound/soc/amd/yc/acp6x-mach.c

@@ -206,6 +206,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "UM5302TA"),
 		}
 	},
+	{
+		.driver_data = &acp6x_card,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Alienware"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"),
+		}
+	},
 	{}
 };
 

sound/soc/codecs/rt5514-spi.c

@@ -305,6 +305,7 @@ static const struct snd_soc_component_driver rt5514_spi_component = {
 	.hw_free		= rt5514_spi_hw_free,
 	.pointer		= rt5514_spi_pcm_pointer,
 	.pcm_construct		= rt5514_spi_pcm_new,
+	.legacy_dai_naming	= 1,
 };
 
 /**

sound/soc/codecs/rt5677-spi.c

@@ -405,6 +405,7 @@ static const struct snd_soc_component_driver rt5677_spi_dai_component = {
 	.prepare		= rt5677_spi_prepare,
 	.pointer		= rt5677_spi_pcm_pointer,
 	.pcm_construct		= rt5677_spi_pcm_new,
+	.legacy_dai_naming	= 1,
 };
 
 /* Select a suitable transfer command for the next transfer to ensure

sound/soc/codecs/tas2764.c

@@ -438,12 +438,6 @@ static int tas2764_set_dai_tdm_slot(struct snd_soc_dai *dai,
 	if (tx_mask == 0 || rx_mask != 0)
 		return -EINVAL;
 
-	if (slots == 1) {
-		if (tx_mask != 1)
-			return -EINVAL;
-		left_slot = 0;
-		right_slot = 0;
-	} else {
 	left_slot = __ffs(tx_mask);
 	tx_mask &= ~(1 << left_slot);
 	if (tx_mask == 0) {
@@ -452,7 +446,6 @@ static int tas2764_set_dai_tdm_slot(struct snd_soc_dai *dai,
 		right_slot = __ffs(tx_mask);
 		tx_mask &= ~(1 << right_slot);
 	}
-	}
 
 	if (tx_mask != 0 || left_slot >= slots || right_slot >= slots)
 		return -EINVAL;

sound/soc/codecs/tas2770.c

@@ -395,13 +395,6 @@ static int tas2770_set_dai_tdm_slot(struct snd_soc_dai *dai,
 	if (tx_mask == 0 || rx_mask != 0)
 		return -EINVAL;
 
-	if (slots == 1) {
-		if (tx_mask != 1)
-			return -EINVAL;
-
-		left_slot = 0;
-		right_slot = 0;
-	} else {
 	left_slot = __ffs(tx_mask);
 	tx_mask &= ~(1 << left_slot);
 	if (tx_mask == 0) {
@@ -410,7 +403,6 @@ static int tas2770_set_dai_tdm_slot(struct snd_soc_dai *dai,
 		right_slot = __ffs(tx_mask);
 		tx_mask &= ~(1 << right_slot);
 	}
-	}
 
 	if (tx_mask != 0 || left_slot >= slots || right_slot >= slots)
 		return -EINVAL;

sound/soc/codecs/tas2780.c

@@ -380,12 +380,6 @@ static int tas2780_set_dai_tdm_slot(struct snd_soc_dai *dai,
 	if (tx_mask == 0 || rx_mask != 0)
 		return -EINVAL;
 
-	if (slots == 1) {
-		if (tx_mask != 1)
-			return -EINVAL;
-		left_slot = 0;
-		right_slot = 0;
-	} else {
 	left_slot = __ffs(tx_mask);
 	tx_mask &= ~(1 << left_slot);
 	if (tx_mask == 0) {
@@ -394,7 +388,6 @@ static int tas2780_set_dai_tdm_slot(struct snd_soc_dai *dai,
 		right_slot = __ffs(tx_mask);
 		tx_mask &= ~(1 << right_slot);
 	}
-	}
 
 	if (tx_mask != 0 || left_slot >= slots || right_slot >= slots)
 		return -EINVAL;

sound/soc/fsl/fsl_asrc.c

@@ -1232,7 +1232,7 @@ static int fsl_asrc_probe(struct platform_device *pdev)
 	}
 
 	ret = pm_runtime_put_sync(&pdev->dev);
-	if (ret < 0)
+	if (ret < 0 && ret != -ENOSYS)
 		goto err_pm_get_sync;
 
 	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_asrc_component,

sound/soc/fsl/fsl_esai.c

@@ -1069,7 +1069,7 @@ static int fsl_esai_probe(struct platform_device *pdev)
 	regmap_write(esai_priv->regmap, REG_ESAI_RSMB, 0);
 
 	ret = pm_runtime_put_sync(&pdev->dev);
-	if (ret < 0)
+	if (ret < 0 && ret != -ENOSYS)
 		goto err_pm_get_sync;
 
 	/*

sound/soc/fsl/fsl_sai.c

@@ -1446,7 +1446,7 @@ static int fsl_sai_probe(struct platform_device *pdev)
 	}
 
 	ret = pm_runtime_put_sync(dev);
-	if (ret < 0)
+	if (ret < 0 && ret != -ENOSYS)
 		goto err_pm_get_sync;
 
 	/*

sound/soc/intel/boards/bytcht_es8316.c

@@ -443,6 +443,13 @@ static const struct dmi_system_id byt_cht_es8316_quirk_table[] = {
 					| BYT_CHT_ES8316_INTMIC_IN2_MAP
 					| BYT_CHT_ES8316_JD_INVERTED),
 	},
+	{	/* Nanote UMPC-01 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
+		},
+		.driver_data = (void *)BYT_CHT_ES8316_INTMIC_IN1_MAP,
+	},
 	{	/* Teclast X98 Plus II */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"),

sound/soc/intel/boards/sof_es8336.c

@@ -63,6 +63,7 @@ struct sof_es8336_private {
 	struct snd_soc_jack jack;
 	struct list_head hdmi_pcm_list;
 	bool speaker_en;
+	struct delayed_work pcm_pop_work;
 };
 
 struct sof_hdmi_pcm {
@@ -111,6 +112,46 @@ static void log_quirks(struct device *dev)
 		dev_info(dev, "quirk headset at mic1 port enabled\n");
 }
 
+static void pcm_pop_work_events(struct work_struct *work)
+{
+	struct sof_es8336_private *priv =
+		container_of(work, struct sof_es8336_private, pcm_pop_work.work);
+
+	gpiod_set_value_cansleep(priv->gpio_speakers, priv->speaker_en);
+
+	if (quirk & SOF_ES8336_HEADPHONE_GPIO)
+		gpiod_set_value_cansleep(priv->gpio_headphone, priv->speaker_en);
+
+}
+
+static int sof_8336_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_card *card = rtd->card;
+	struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		break;
+
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_STOP:
+		if (priv->speaker_en == false)
+			if (substream->stream == 0) {
+				cancel_delayed_work(&priv->pcm_pop_work);
+				gpiod_set_value_cansleep(priv->gpio_speakers, true);
+			}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int sof_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
 					  struct snd_kcontrol *kcontrol, int event)
 {
@@ -122,19 +163,7 @@ static int sof_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
 
 	priv->speaker_en = !SND_SOC_DAPM_EVENT_ON(event);
 
-	if (SND_SOC_DAPM_EVENT_ON(event))
-		msleep(70);
-
-	gpiod_set_value_cansleep(priv->gpio_speakers, priv->speaker_en);
-
-	if (!(quirk & SOF_ES8336_HEADPHONE_GPIO))
-		return 0;
-
-	if (SND_SOC_DAPM_EVENT_ON(event))
-		msleep(70);
-
-	gpiod_set_value_cansleep(priv->gpio_headphone, priv->speaker_en);
-
+	queue_delayed_work(system_wq, &priv->pcm_pop_work, msecs_to_jiffies(70));
 	return 0;
 }
 
@@ -344,6 +373,7 @@ static int sof_es8336_hw_params(struct snd_pcm_substream *substream,
 /* machine stream operations */
 static struct snd_soc_ops sof_es8336_ops = {
 	.hw_params = sof_es8336_hw_params,
+	.trigger = sof_8336_trigger,
 };
 
 static struct snd_soc_dai_link_component platform_component[] = {
@@ -723,7 +753,8 @@ static int sof_es8336_probe(struct platform_device *pdev)
 	}
 
 	INIT_LIST_HEAD(&priv->hdmi_pcm_list);
-
+	INIT_DELAYED_WORK(&priv->pcm_pop_work,
+				pcm_pop_work_events);
 	snd_soc_card_set_drvdata(card, priv);
 
 	if (mach->mach_params.dmic_num > 0) {
@@ -752,6 +783,7 @@ static int sof_es8336_remove(struct platform_device *pdev)
 	struct snd_soc_card *card = platform_get_drvdata(pdev);
 	struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
 
+	cancel_delayed_work(&priv->pcm_pop_work);
 	gpiod_put(priv->gpio_speakers);
 	device_remove_software_node(priv->codec_dev);
 	put_device(priv->codec_dev);

sound/soc/intel/common/soc-acpi-intel-icl-match.c

@@ -10,6 +10,11 @@
 #include <sound/soc-acpi-intel-match.h>
 #include "../skylake/skl.h"
 
+static const struct snd_soc_acpi_codecs essx_83x6 = {
+	.num_codecs = 3,
+	.codecs = { "ESSX8316", "ESSX8326", "ESSX8336"},
+};
+
 static struct skl_machine_pdata icl_pdata = {
 	.use_tplg_pcm = true,
 };
@@ -27,6 +32,14 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_icl_machines[] = {
 		.drv_name = "sof_rt5682",
 		.sof_tplg_filename = "sof-icl-rt5682.tplg",
 	},
+	{
+		.comp_ids = &essx_83x6,
+		.drv_name = "sof-essx8336",
+		.sof_tplg_filename = "sof-icl-es8336", /* the tplg suffix is added at run time */
+		.tplg_quirk_mask = SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER |
+					SND_SOC_ACPI_TPLG_INTEL_SSP_MSB |
+					SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER,
+	},
 	{},
 };
 EXPORT_SYMBOL_GPL(snd_soc_acpi_intel_icl_machines);

sound/soc/soc-core.c

@@ -3477,10 +3477,23 @@ EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_link_cpus);
 
 static int __init snd_soc_init(void)
 {
+	int ret;
+
 	snd_soc_debugfs_init();
-	snd_soc_util_init();
+	ret = snd_soc_util_init();
+	if (ret)
+		goto err_util_init;
 
-	return platform_driver_register(&soc_driver);
+	ret = platform_driver_register(&soc_driver);
+	if (ret)
+		goto err_register;
+	return 0;
+
+err_register:
+	snd_soc_util_exit();
+err_util_init:
+	snd_soc_debugfs_exit();
+	return ret;
 }
 module_init(snd_soc_init);
 

sound/soc/soc-dapm.c

@@ -3645,7 +3645,7 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
 
 	switch (w->id) {
 	case snd_soc_dapm_regulator_supply:
-		w->regulator = devm_regulator_get(dapm->dev, w->name);
+		w->regulator = devm_regulator_get(dapm->dev, widget->name);
 		if (IS_ERR(w->regulator)) {
 			ret = PTR_ERR(w->regulator);
 			goto request_failed;

sound/soc/soc-utils.c

@@ -264,7 +264,7 @@ int __init snd_soc_util_init(void)
 	return ret;
 }
 
-void __exit snd_soc_util_exit(void)
+void snd_soc_util_exit(void)
 {
 	platform_driver_unregister(&soc_dummy_driver);
 	platform_device_unregister(soc_dummy_dev);

sound/soc/sof/ipc3-topology.c

@@ -2275,6 +2275,7 @@ static int sof_ipc3_tear_down_all_pipelines(struct snd_sof_dev *sdev, bool verif
 	struct sof_ipc_fw_version *v = &sdev->fw_ready.version;
 	struct snd_sof_widget *swidget;
 	struct snd_sof_route *sroute;
+	bool dyn_widgets = false;
 	int ret;
 
 	/*
@@ -2284,12 +2285,14 @@ static int sof_ipc3_tear_down_all_pipelines(struct snd_sof_dev *sdev, bool verif
 	 * topology loading the sound card unavailable to open PCMs.
 	 */
 	list_for_each_entry(swidget, &sdev->widget_list, list) {
-		if (swidget->dynamic_pipeline_widget)
+		if (swidget->dynamic_pipeline_widget) {
+			dyn_widgets = true;
 			continue;
+		}
 
-		/* Do not free widgets for static pipelines with FW ABI older than 3.19 */
+		/* Do not free widgets for static pipelines with FW older than SOF2.2 */
 		if (!verify && !swidget->dynamic_pipeline_widget &&
-		    v->abi_version < SOF_ABI_VER(3, 19, 0)) {
+		    SOF_FW_VER(v->major, v->minor, v->micro) < SOF_FW_VER(2, 2, 0)) {
 			swidget->use_count = 0;
 			swidget->complete = 0;
 			continue;
@@ -2303,9 +2306,11 @@ static int sof_ipc3_tear_down_all_pipelines(struct snd_sof_dev *sdev, bool verif
 	/*
 	 * Tear down all pipelines associated with PCMs that did not get suspended
 	 * and unset the prepare flag so that they can be set up again during resume.
-	 * Skip this step for older firmware.
+	 * Skip this step for older firmware unless topology has any
+	 * dynamic pipeline (in which case the step is mandatory).
 	 */
-	if (!verify && v->abi_version >= SOF_ABI_VER(3, 19, 0)) {
+	if (!verify && (dyn_widgets || SOF_FW_VER(v->major, v->minor, v->micro) >=
+	    SOF_FW_VER(2, 2, 0))) {
 		ret = sof_tear_down_left_over_pipelines(sdev);
 		if (ret < 0) {
 			dev_err(sdev->dev, "failed to tear down paused pipelines\n");

sound/soc/sof/topology.c

@@ -1344,16 +1344,6 @@ static int sof_widget_ready(struct snd_soc_component *scomp, int index,
 		break;
 	}
 
-	if (sof_debug_check_flag(SOF_DBG_DISABLE_MULTICORE)) {
-		swidget->core = SOF_DSP_PRIMARY_CORE;
-	} else {
-		int core = sof_get_token_value(SOF_TKN_COMP_CORE_ID, swidget->tuples,
-					       swidget->num_tuples);
-
-		if (core >= 0)
-			swidget->core = core;
-	}
-
 	/* check token parsing reply */
 	if (ret < 0) {
 		dev_err(scomp->dev,
@@ -1365,6 +1355,16 @@ static int sof_widget_ready(struct snd_soc_component *scomp, int index,
 		return ret;
 	}
 
+	if (sof_debug_check_flag(SOF_DBG_DISABLE_MULTICORE)) {
+		swidget->core = SOF_DSP_PRIMARY_CORE;
+	} else {
+		int core = sof_get_token_value(SOF_TKN_COMP_CORE_ID, swidget->tuples,
+					       swidget->num_tuples);
+
+		if (core >= 0)
+			swidget->core = core;
+	}
+
 	/* bind widget to external event */
 	if (tw->event_type) {
 		if (widget_ops[w->id].bind_event) {

sound/soc/stm/stm32_adfsdm.c

@@ -304,6 +304,11 @@ static int stm32_adfsdm_dummy_cb(const void *data, void *private)
 	return 0;
 }
 
+static void stm32_adfsdm_cleanup(void *data)
+{
+	iio_channel_release_all_cb(data);
+}
+
 static struct snd_soc_component_driver stm32_adfsdm_soc_platform = {
 	.open		= stm32_adfsdm_pcm_open,
 	.close		= stm32_adfsdm_pcm_close,
@@ -350,6 +355,12 @@ static int stm32_adfsdm_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->iio_cb))
 		return PTR_ERR(priv->iio_cb);
 
+	ret = devm_add_action_or_reset(&pdev->dev, stm32_adfsdm_cleanup, priv->iio_cb);
+	if (ret < 0)  {
+		dev_err(&pdev->dev, "Unable to add action\n");
+		return ret;
+	}
+
 	component = devm_kzalloc(&pdev->dev, sizeof(*component), GFP_KERNEL);
 	if (!component)
 		return -ENOMEM;

sound/usb/midi.c

@@ -1133,10 +1133,8 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
 					port = &umidi->endpoints[i].out->ports[j];
 					break;
 				}
-	if (!port) {
-		snd_BUG();
+	if (!port)
 		return -ENXIO;
-	}
 
 	substream->runtime->private_data = port;
 	port->state = STATE_UNKNOWN;