ALSA: Replace with fallthrough pseudo keyword in the remaining places

A few places (except for ASoC) are left unconverted for the new
fallthrough pseudo keyword.  Now replace them all.
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200709111750.8337-4-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/isa/es18xx.c

@@ -998,7 +998,7 @@ static int snd_es18xx_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem
 			val = 3;
 		} else
 			retVal = snd_es18xx_mixer_bits(chip, 0x7a, 0x08, 0x00) != 0x00;
-		/* fall through */
+		fallthrough;
  /* 4 source chips */
 	case 0x1868:
 	case 0x1878:

sound/pci/au88x0/au88x0_core.c

@@ -1103,7 +1103,7 @@ vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
 		hwwrite(vortex->mmio,
 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
-		/* fall through */
+		fallthrough;
 		/* 3 pages */
 	case 3:
 		dma->cfg0 |= 0x12000000;
@@ -1111,14 +1111,14 @@ vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
 		hwwrite(vortex->mmio,
 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
-		/* fall through */
+		fallthrough;
 		/* 2 pages */
 	case 2:
 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
 		hwwrite(vortex->mmio,
 			VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
-		/* fall through */
+		fallthrough;
 		/* 1 page */
 	case 1:
 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
@@ -1381,20 +1381,20 @@ vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
 		dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 3));
-		/* fall through */
+		fallthrough;
 		/* 3 pages */
 	case 3:
 		dma->cfg0 |= 0x12000000;
 		dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
 			snd_pcm_sgbuf_get_addr(dma->substream, psize * 2));
-		/* fall through */
+		fallthrough;
 		/* 2 pages */
 	case 2:
 		dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
 		hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
 			snd_pcm_sgbuf_get_addr(dma->substream, psize));
-		/* fall through */
+		fallthrough;
 		/* 1 page */
 	case 1:
 		dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);

sound/pci/oxygen/oxygen_pcm.c

@@ -137,7 +137,7 @@ static int oxygen_open(struct snd_pcm_substream *substream,
 					       SNDRV_PCM_RATE_64000);
 			runtime->hw.rate_min = 44100;
 		}
-		/* fall through */
+		fallthrough;
 	case PCM_A:
 	case PCM_B:
 		runtime->hw.fifo_size = 0;

sound/usb/caiaq/audio.c

@@ -820,7 +820,7 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev)
 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_SESSIONIO):
 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_GUITARRIGMOBILE):
 		cdev->samplerates |= SNDRV_PCM_RATE_192000;
-		/* fall thru */
+		fallthrough;
 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO2DJ):
 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ):
 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):

sound/usb/caiaq/device.c

@@ -187,7 +187,7 @@ static void usb_ep1_command_reply_dispatch (struct urb* urb)
 			break;
 		}
 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
-		/* fall through */
+		fallthrough;
 	case EP1_CMD_READ_ERP:
 	case EP1_CMD_READ_ANALOG:
 		snd_usb_caiaq_input_dispatch(cdev, buf, urb->actual_length);

sound/usb/midi.c

@@ -2401,7 +2401,7 @@ int __snd_usbmidi_create(struct snd_card *card,
 		break;
 	case QUIRK_MIDI_US122L:
 		umidi->usb_protocol_ops = &snd_usbmidi_122l_ops;
-		/* fall through */
+		fallthrough;
 	case QUIRK_MIDI_FIXED_ENDPOINT:
 		memcpy(&endpoints[0], quirk->data,
 		       sizeof(struct snd_usb_midi_endpoint_info));