ALSA: usb-audio: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1357413 ("Missing break in switch")
Addresses-Coverity-ID: 114917 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 73e811f86a957d367d883c0f2bad13466c6ce89a..c63c84b54969b9b2e51a6321f98695534615b1b5 100644 (file)
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -856,12 +856,14 @@ static int check_input_term(struct mixer_build *state, int id,
                                        term->type = UAC3_PROCESSING_UNIT << 16; /* virtual type */
                                else /* UAC_VERSION_2 */
                                        term->type = UAC3_EFFECT_UNIT << 16; /* virtual type */
+                               /* fall through */
                        case UAC1_EXTENSION_UNIT:
                        /* UAC2_PROCESSING_UNIT_V2 */
                                if (protocol == UAC_VERSION_1 && !term->type)
                                        term->type = UAC3_EXTENSION_UNIT << 16; /* virtual type */
                                else if (protocol == UAC_VERSION_2 && !term->type)
                                        term->type = UAC3_PROCESSING_UNIT << 16; /* virtual type */
+                               /* fall through */
                        case UAC2_EXTENSION_UNIT_V2: {
                                struct uac_processing_unit_descriptor *d = p1;